By Thermally Emitted Radiation Patents (Class 374/121)
  • Publication number: 20110182322
    Abstract: A thermal detector includes a thermal detecting element and a support member supporting the thermal detecting element and a wiring layer. The support member has an arm member connected to a mounting member with the first arm member having an arm base end section extending outwardly from the mounting member toward a first direction, the arm base section having a first width measured along a direction perpendicular to the first direction, and an arm body section having a proximal end portion extending from the arm base end section generally along an outer contour of the mounting member with the proximal end portion being spaced apart from an edge of the mounting member in the first direction. The proximal end portion of the arm body section has a second width measured along a direction perpendicular to a lengthwise direction of the arm body section that is narrower than the first width.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 28, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Taketomi KAMIKAWA
  • Publication number: 20110182321
    Abstract: A detection circuit for a heat sensor includes a charge circuit provided between a second power supply node and a detection node of a heat sensing element, and a discharge circuit provided between the detection node and a first power supply node. The discharge circuit has a discharge resistance element and a discharge transistor provided in series between the detection node and the first power supply node.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 28, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kei YOSHIZAKI, Mitsuhiro YAMAMURA
  • Publication number: 20110176577
    Abstract: A multi-waveband temperature sensor array, in which each superpixel (e.g., 2×2 pixel cell) operates at a distinct thermal infrared (IR) waveband (e.g. four wavebands) is disclosed. Using an example high spatial resolution, four-band thermal IR band photodetector array, accurate temperature measurements on the surface of an object can be made without prior knowledge of the object emissivity. The multiband photodetector may employ intersubband transition in III-V semiconductor-based quantum layered structures where each photodetector stack absorbs photons within the specified wavelength band while allowing the transmission of photons in other spectral bands, thus efficiently permitting multiband detection. This produces multiple, spectrally resolved images of a scene that are recorded simultaneously in a single snapshot of the FPA. From the multispectral images and calibration information about the system, computational algorithms are used to produce the surface temperature map of a target.
    Type: Application
    Filed: December 8, 2009
    Publication date: July 21, 2011
    Applicant: California Institute of Technology
    Inventors: Sumith V. Bandara, Sarath D. Gunapala, John K. Liu, Robert C. Stirbl, Daniel W. Wilson, David Z. Ting
  • Patent number: 7980758
    Abstract: The invention concerns an equipment for non-contact temperature measurement (1) of samples of materials (2) arranged in a vacuum chamber (12). A UV lamp (6) illuminates the samples (2) through a window (4), so as to subject them to a predetermined thermal cycle and to perform an environmental test, in particular for materials designed for space missions. An external pyrometer measures the temperature of the samples (2) through a window (6). It is associated with a scanning module (9) including a mobile mirror, with two axes of rotation and three orthogonal axes of translation, arranged on the optical path of the infrared radiation (Rir) so as to obtain a two-dimensional scanning of each sample (2) by means of a measuring spot focused on the surface of the samples. In a preferred embodiment, the samples are of slight thickness and locked pressed against a convex support. The whole assembly is monitored by an automatic data processing system with recorded program (10).
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: July 19, 2011
    Assignee: Organisation Intergouvernementale Dite Agence Spatiale Europeenne
    Inventors: Christoph SempriMoschnig, Marc Van Eesbeek, Stan Heltzel
  • Patent number: 7976215
    Abstract: The present invention relates to an apparatus and method for measuring thermal diffusivity using the flash method. The apparatus includes: a laser generator 60 for generating a flash beam 30; a measurement sample 10 having graphite layers 20 formed on front and rear surfaces thereof, through which the flash beam 30 passes; an infrared sensor 70 disposed at the rear of the measurement sample 10 for measuring a temperature and time at the rear surface of the measurement sample 10 from heat 40 dissipated from the measurement sample 10; and operation means 80 for performing an operation based on an output signal of the infrared sensor 70.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: July 12, 2011
    Assignee: Korea Advanced Institute of Science and Technology
    Inventor: Seog Kwang Kim
  • Patent number: 7976216
    Abstract: The temperature of an object such as a semiconductor wafer that includes silicon can be determined based on the variation of the optical absorption coefficient of silicon with temperature. Temperatures above about 850° C., can be found by measuring phenomena that are affected by the magnitude of the optical absorption coefficient, especially at wavelengths >˜1 ?m. Phenomena could include measuring light reflected, transmitted, emitted, absorbed, or scattered by the wafer and deriving the absorption coefficient from the measurements and then deriving temperature from the absorption coefficient. Temperature could be determined from a model relating phenomena directly to temperature, the model constructed based on absorption behavior and techniques discussed herein. The resulting temperature could be used to calibrate or control a rapid thermal processing chamber or other apparatus.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 12, 2011
    Assignee: Mattson Technology, Inc.
    Inventor: Paul Janis Timans
  • Publication number: 20110164654
    Abstract: The present invention provides an ear thermometer that irradiates liquid crystal with backlight without increasing a battery capacity, to make a body temperature displayed with the liquid crystal easily visible even in a dark place. An MCU 1 displays a body temperature measured by a body temperature measuring part (3) on a liquid crystal display part (5), controls, through input/output ports (P1, P2), a backlight emitting part (7) in such a way that the light quantity of the backlight irradiating the liquid crystal display part (5) from the backlight emitting part (7) is maximized for a first predetermined time, controls the backlight emitting part (7) in such a way that the quantity of the backlight keeps, for a second predetermined time that follows the first predetermined time, a predetermined level that is lower than the maximum, and controls the backlight emitting part (7) in such a way that the quantity of the backlight is zeroed after the second predetermined time elapses.
    Type: Application
    Filed: May 20, 2009
    Publication date: July 7, 2011
    Applicant: BIO ECHO NET INC
    Inventor: Hideki Tanaka
  • Publication number: 20110164655
    Abstract: A thermal sensor that includes a ceramic body formed of NTC thermister ceramic, heat sensing part electrodes, temperature compensation part electrodes, external electrodes, and a cavity. A heat sensing part, which is the surface layer of the ceramic body, is heated by, for example, radiant heat transfer, reducing the resistance value of a thermistor ceramic layer between the heat sensing part electrodes. Since the heat of the heat sensing part of the ceramic body is insulated by the cavity and thus prevented from diffusing, the heat capacity of the heat sensing unit is reduced, obtaining high sensitivity and high responsiveness.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Inventors: Shinichiro Nawai, Tadamasa Miura
  • Publication number: 20110155913
    Abstract: Disclosed is a temperature sensor using a work-function-difference-based radiant-ray detecting element that outputs, as a detecting signal of radiant rays, a work function difference between gate electrodes of first and second field-effect transistors sensing the radiant rays. The temperature sensor includes at least a pair of a first work-function-difference-based radiant-ray detecting element having a positive output temperature coefficient; and a second work-function-difference-based radiant-ray detecting element having a negative output temperature coefficient of which an absolute value is equal to an absolute value of the output temperature coefficient of the first work-function-difference-based radiant-ray detecting element.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hidetaka NOGUCHI, Hirofumi Watanabe
  • Publication number: 20110128989
    Abstract: A thermal measurement system that includes a light collection device and a detection system in communication with the device. The detection system includes two detection subsystems, wherein one subsystem is configured to detect light from a surface of an object, while the other subsystem is configured to detect light from the surface and a gas. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hejie Li, Roderick Gordon Brown, Samhita Dasgupta, Edward Randall Furlong, Nirm Velumylum Nirmalan, Anquan Wang, Guanghua Wang, Stephen Thomas Walls, Lesley Ellen Brown
  • Publication number: 20110121978
    Abstract: The invention relates to a handheld device (1) for infrared temperature measurement, comprising an infrared radiation detector (3) for measuring the temperature of a measuring spot (4) on an object under measurement (5), comprising an optical pickup device (2) for sensing the region containing the measuring spot (4) and comprising a display means (6) for presenting the measured temperature value. To provide a handheld device (1) which uses simple means to enable an operator to line up a measuring spot (4) on an object under measurement (5) and at the same time give the operator information on one or more ambient variables during this operation, it is proposed to design the display means (6) for continuously presenting the region of the object under measurement (5) that contains the measuring spot (4) and at least one item of temperature information that is correlated synchronously in time with the presentation.
    Type: Application
    Filed: August 15, 2008
    Publication date: May 26, 2011
    Applicant: TESTO AG
    Inventors: Wolfgang Schwörer, Frank Eder, Kerstin Tetzlaff
  • Patent number: 7946761
    Abstract: This invention relates to a shrinkable dispensing container for probe covers of an ear thermometer. Therein, the ear thermometer probe cover refers to a product having a hollow body and a flange. The dispensing container for probe covers of an ear thermometer comprises a main body for accommodating a plurality of stacked probe covers and an access opening formed at one end of the main body for allowing an ear thermometer probe to insert into the probe cover in the main body. The present invention is characterized by a bottom portion formed at another end of the main body opposite to the access opening for supporting all the probe covers stacked within the main body.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: May 24, 2011
    Assignee: Actherm Inc.
    Inventor: Liang-Yi Li
  • Patent number: 7946759
    Abstract: A method and apparatus for measuring a substrate temperature during a thermal process are provided. In one embodiment, an apparatus for measuring a substrate temperature during a thermal process includes an evacutable chamber, a substrate heater positioned to heat a substrate disposed in the chamber, and a sensor positioned to receive energy transmitted through the substrate while the substrate is heated by the substrate heater, wherein the sensor is configured to detect a metric indicative of transmittance. In another embodiment, a method for measuring a substrate temperature includes heating a substrate disposed in a chamber, detecting a change in transmittance of the substrate while heating, and determining a temperature of the substrate based on the change in transmittance.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: May 24, 2011
    Assignee: Applied Materials, Inc.
    Inventors: Matthew Fenton Davis, Kenneth J. Bahng
  • Publication number: 20110110394
    Abstract: A microstructured sensor for detecting IR radiation includes: one measuring channel having a measuring diaphragm, on which a first sensitive detector surface is implemented for the absorption of a first IR radiation; and one reference channel having a reference diaphragm, on which a second sensitive detector surface is implemented for the absorption of a second IR radiation. A measuring structure, e.g., a thermopile measuring structure as a series circuit made of thermocouple pairs, is implemented between the measuring diaphragm and the reference diaphragm for measuring a temperature differential between the measuring diaphragm and the reference diaphragm. First and second thermal contacts lie alternately on the two diaphragms.
    Type: Application
    Filed: September 29, 2010
    Publication date: May 12, 2011
    Inventors: Udo Kaess, Christian Lemier, Markus Niemann
  • Publication number: 20110110395
    Abstract: A thermometer that enables the measurement of temperature from multiple body sites comprising a body portion that has a circuit configured to measure an IR signal and convert it into an output that accurately reflects body temperature and a switch in communication with the circuit. The thermometer also comprises a probe that has an IR window configured to accept an IR signal and an attachment mechanism coupled to the probe which comprises a generally circular hollow bore at its distal end, fastening members to engage the body of the thermometer and a pin at its proximal end for interacting with the switch on the body of the thermometer. When the attachment mechanism couples to the probe, the pin interacts with the switch in various positions and the circuit converts the signal based upon the position of the switch which position reflects the location from which the temperature measurement was taken.
    Type: Application
    Filed: October 4, 2010
    Publication date: May 12, 2011
    Inventor: Jacob FRADEN
  • Publication number: 20110103426
    Abstract: The present invention provides a steel plate quality assurance system and facilities thereof, wherein the steel plate quality assurance system measures, with a steel plate manufacturing line including a finishing mill of a steel plate manufacturing line, and accelerated cooling equipment disposed on the downstream side of the finishing mill in the advancing direction of the steel plate manufacturing line, temperature of at least the whole area of the upper surface of a steel plate, or the whole area of the lower surface of a steel plate to perform quality assurance, and includes temperature measurement means; temperature analysis means; and mechanical property determining means.
    Type: Application
    Filed: March 26, 2009
    Publication date: May 5, 2011
    Inventors: Koji Narihara, Toshikazu Akita, Yukihiro Okada, Yutaka Wada, Kouhei Obara, Toru Takahashi
  • Publication number: 20110106484
    Abstract: A thermometer for determining the temperature of an animal's ear drum. The thermometer includes a probe, an infrared-radiation detector adapted to receive infrared radiation emitted by the ear drum, and devices that help insure that the probe is disposed in a desired position in the ear canal so as to optimize the infrared radiation received from the ear drum, and to minimize the infrared radiation received from other ear parts. A method of using the thermometer is also disclosed.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Applicant: Welch Allyn, Inc.
    Inventors: David E. Quinn, John A. Lane, Scott A. Martin, Craig M. Meyerson, Matthew D. Mullin, Henry J. Smith, III, Ray D. Stone
  • Patent number: 7927012
    Abstract: A cassette of tympanic thermometer probe covers includes a frame and probe covers releasably attached to the frame. The probe covers can be individually attached over a probe of a tympanic thermometer to protect the probe from contamination. The probe covers are constructed to releasably secure themselves to the probe. The force required to secure the probe covers to the frame is less that the force which is required to detach the probe covers from the frame so that the probe cover is held by the frame while being attached to the thermometer probe. The probe cover is connected to the frame by frangible connections that are arranged to inhibit pivoting of the probe cover when being attached to the thermometer probe. A method of securing a probe cover to a probe of a tympanic thermometer is also disclosed.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 19, 2011
    Assignee: Covidien AG
    Inventors: James M. Harr, Mitchell H. Babkes, Clarence Walker
  • Patent number: 7909507
    Abstract: A thermal inspection method is provided for a component comprising at least one complex internal passage arrangement defining at least one opening. The thermal inspection method includes flowing a fluid through the at least one complex internal passage arrangement. The fluid has an initial temperature that differs from an initial temperature of the component. The thermal inspection method further includes measuring a thermal response of the component to the fluid flow and analyzing the thermal response to determine a number of heat transfer coefficients {hlmn} corresponding to respective locations {l,m,n} within the complex internal passage arrangement. The thermal inspection method further includes using the heat transfer coefficients {hlmn} to determine at least one of (a) a flow rate through respective ones of the at least one opening, and (b) a cross-sectional area for respective ones of the at least one opening.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: March 22, 2011
    Assignee: General Electric Company
    Inventors: Ronald Scott Bunker, Nirm Velumylum Nirmalan
  • Publication number: 20110064114
    Abstract: A pyrometer that is adapted for detecting radiation in the range of 250 to 450 nm is disclosed. The pyrometer can be used for determining the temperature of a matter thermally emitting only ultraviolet-radiation. In particular, the pyrometer can include: a detector having an active area adapted for measuring thermal radiation, a longpass filter having a cut-off wavelength in the range of 400 to 450 nm, means adapted for alternately activating and deactivating the longpass filter, means adapted for measuring a first thermal radiation signal when the longpass filter is deactivated and adapted for measuring a second thermal radiation signal when the longpass filter is activated, and means adapted for determining a temperature corresponding to the measured thermal radiation from a difference of the first radiation signal and the second radiation signal.
    Type: Application
    Filed: August 18, 2010
    Publication date: March 17, 2011
    Applicant: LayTec GmbH
    Inventors: Joerg-Thomas ZETTLER, Tobias SCHENK, Jens ZILIAN
  • Patent number: 7907266
    Abstract: A radiometer the calibration of collimated pulsed laser sources. In one embodiment the laser sources have wavelengths of 1064 nm and 1540-1570 nm wavelengths at irradiance levels of 7×10?5 to 5×1010 Watts/cm2, with pulse widths of 5-400 ns. A lens system used to focus beams from the laser sources includes two piano convex lenses and one aspheric lens, all with 1.5 micron and 1.06 micron anti-reflection coatings. An InGaAs avalanche photodiode (APD) detector and a linear amplifier generate an output voltage which represents the pulse and power of the input laser. The output voltage is captured on a fast oscilloscope and converted to irradiance through NIST calibration factors. The detector is kept at a constant predetermined temperature with a heater ring and feedback circuit. The detector is mounted on a translation stage for placing the detector at the proper position for the 1064 nm and 1540-1570 nm wavelengths.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: March 15, 2011
    Assignees: The United States of America as represented by the Secretary of the Department of Commerce, The United States of America as represented by the Secretary of the Navy
    Inventors: Daniel Wayne King, Rodney William Leonhardt
  • Patent number: 7901133
    Abstract: A pressure thermistor has a retention part, a film retained on the lower surface of the retention part in such a way that both surfaces of the film are exposed, and a thermosensitive device attached to the film. One surface of the film is rough and faces a pressure roller. The one surface of the film is increased in surface area due to rough surface. Thus, reflection of heat from the pressure roller is suppressed on the one surface of the film. Also, it becomes possible to improve the absorptivity of heat on the one surface of the film.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: March 8, 2011
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Yutaka Otsuka
  • Publication number: 20110051774
    Abstract: A patch may be adapted for placement proximate to a surface region of a mammal. The patch may include an infrared target for receiving thermal energy from the surface region and for emitting infrared radiation according to a substantially known emissivity property. When the target is placed proximate to the surface region, the characteristics of infrared radiation emitted by the target substantially correspond to the temperature of the surface region. The patch may have means for selectively maintaining the target in a position proximate to a surface region of a mammal. The patch may include indicia uniquely associated with the patch.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: WELCH ALLYN, INC.
    Inventors: David E. Quinn, Scott A. Martin, John A. Lane, Clare L. Corcoran, Craig M. Meyerson
  • Publication number: 20110046916
    Abstract: A position sensitive pyrometer includes a sensor.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Applicant: First Solar, Inc.
    Inventors: Ming Lun Yu, Markus E. Beck
  • Patent number: 7891867
    Abstract: A method is provided for measuring a parameter of a molten metal bath by an optical fiber surrounded by a cover. The optical fiber is immersed in the molten bath, and the radiation absorbed by the optical fiber in the molten bath is fed to a detector, wherein the optical fiber is heated when immersed in the molten bath. The heating curve of the optical fiber has at least one point P(t0, T0), wherein the increase ?T1 in the temperature T of the optical fiber over the time ?t in a first time interval t0??t up to the temperature T0 is smaller than the increase ?T2 in the temperature of the optical fiber over the time ?t in an immediately following second time interval t0+?t.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 22, 2011
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Francis Dams, Frank Seutens, Robert C. Whitaker
  • Publication number: 20110032969
    Abstract: A thermopile, utilizing the Seebeck effect, is placed into a blackbody cavity or other ambient heat source, where the hot junctions are inside the heat source, and the cold junctions are outside the heat source, and thereby produces a voltage.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 10, 2011
    Inventor: John Lee Warren
  • Publication number: 20110018721
    Abstract: A method of measuring the temperature of a sheet material in which the sheet material is arranged such that it forms at least one side of a cavity so as to enhance the effective emissivity of the sheet material in the vicinity of the cavity.
    Type: Application
    Filed: July 30, 2010
    Publication date: January 27, 2011
    Applicant: LAND INSTRUMENTS INTERNATIONAL LIMITED
    Inventors: Thomas Geoffrey Ronald BEYNON, Ian Hamilton RIDLEY, Stuart Francis METCALFE, Andrew MELLOR, Ben WILEMAN
  • Publication number: 20100329301
    Abstract: A temperature sensing device for remotely detecting the temperature of a subject having an identifying feature and a target zone in a fixed relationship to the identifying feature comprising: a distance sensor which measures the distance between the subject and the distance sensor; a temperature sensor for measuring a temperature difference in a sensing zone; a digital image capture device for capturing a digital image of the subject; a means of tilting at least the temperature sensor along at least one axis, and preferably tilting and panning along two axes; a controller that actuates the tilting means; and a support for supporting the distance sensor, the temperature sensor and the digital image capture device; wherein the controller tilts the distance sensor using the tilting means to reduce the distance between the target zone and the sensing zone; and a temperature sensor that measures a temperature difference proximate to the target zone, to detect elevated temperature illness in humans or animals.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventors: Yuk-Wa Pang, Ho-Wai Phyllis Leung, Chun-Kong Joseph Chan, Kin Wah Kong, Yat-Pui Wong, Kin-Ip Li
  • Patent number: 7857507
    Abstract: A patch having an infrared (IR) target is placed proximate to the surface of a mammal. The patch may include an insulator for protecting the target from exterior, ambient IR and may include bar codes or other indicia uniquely associated with either the patch or the mammal. The patch may also include a bio-reactive agent for indicating characteristics such as the pH of the mammal's skin. The patch may also include a thermometer for sensing the level of IR radiation from the IR target and may include a display of the temperature associated with such a level. The patch may also include a transmitter for wirelessly communicating information about such level to a remote location. A method of using the patch is also disclosed.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: December 28, 2010
    Assignee: Welch Allyn, Inc.
    Inventors: David E. Quinn, Scott A. Martin, John A. Lane, Clare L. Corcoran, Craig M. Meyerson
  • Publication number: 20100322282
    Abstract: An infrared thermometer includes a probe and an infrared sensor. The probe with an infrared target absorbs thermal radiation to provide a substantially consistent source of infrared radiation and an aperture for preventing contamination of the infrared target while permitting the transmission of thermal radiation to the target. The infrared sensor is configured for sensing infrared radiation from the infrared target. The infrared target is positioned within the probe such that it absorbs thermal radiation that comes from the aperture and thereafter emits thermal radiation to the infrared sensor.
    Type: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Applicant: WELCH ALLYN, INC.
    Inventors: John A. Lane, David E. Quinn
  • Patent number: 7841767
    Abstract: A tympanic thermometer includes a thermally conductive nozzle extending from a distal end of the thermometer. A base of a sensor can is thermally connected to the nozzle to define a path of conductive heat transfer from the nozzle to the base of the can thereby minimizing a thermal gradient between proximal and distal ends of the sensor can when temperature is measured in the ear. An air space around the sensor can inhibits heat transfer except at the base of the sensor can.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: November 30, 2010
    Assignee: Covidien AG
    Inventor: James M. Harr
  • Patent number: 7837383
    Abstract: The invention is an optical method and apparatus for measuring the temperature of semiconductor substrates in real-time, during thin film growth and wafer processing. Utilizing the nearly linear dependence of the interband optical absorption edge on temperature, the present method and apparatus result in highly accurate measurement of the absorption edge in diffuse reflectance and transmission geometry, in real time, with sufficient accuracy and sensitivity to enable closed loop temperature control of wafers during film growth and processing. The apparatus operates across a wide range of temperatures covering all of the required range for common semiconductor substrates.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: November 23, 2010
    Assignee: k-Space Associates, Inc.
    Inventors: Charles A. Taylor, II, Darryl Barlett, Douglas Perry, Roy Clarke, Jason Williams
  • Publication number: 20100292951
    Abstract: A system and method are disclosed that determines the emissivity and temperature of a target object. A compact emitter capable of sequentially emitting blackbody-like radiation at two different temperatures is used to determine the target object's emissivity and temperature.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 18, 2010
    Applicant: Fluke Corporation
    Inventors: Reno Gaertner, Steffen Ludwig, Rainer Kuepper, Klaus-Peter Moellmann
  • Publication number: 20100284436
    Abstract: An IR tip assembly includes a shroud having at least one feature that permits releasable attachment of a disposable cover fitted to a shroud. When the disposable cover is fitted to the shroud, at least one air gap is defined between the shroud and the disposable cover. An IR sensor disposed within the IR tip assembly is mechanically and thermally coupled to a heat sink. The at least one defined air gap creates a thermal isolation between the disposable cover and the disposed IR sensor. There can also be airflow through the at least one air gap. Apparatus and methods to create the airflow are described.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 11, 2010
    Applicant: Welch Allyn, Inc.
    Inventors: John A. Lane, David E. Quinn, Scott A. Martin, Ray D. Stone, Matthew D. Mullin, Craig M. Meyerson
  • Patent number: 7828478
    Abstract: A thermal detecting device for sensing temperature at multiple locations proximate to the detecting device is provided. The detecting device has a pair of infrared detectors each configured to measure temperature of two locations by receiving infrared energy of the two locations. A housing encloses the pair of infrared detectors. The housing is configured with an aperture to allow the infrared energy of the two locations to be received by the pair of infrared detectors. A reflective mirror or two mirrors focus the infrared energy of the two locations towards the pair of infrared detectors. The detecting device may be configured to determine if there is a temperature differential at a location as the housing moves with respect to the location.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: November 9, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: Siddharth S. Rege, Joseph E. Harter, Jr., Ronald M. Taylor
  • Patent number: 7828476
    Abstract: An infrared inspection and reporting process and system obtains inspection data on site via a portable computer. An actual temperature of a component derived from an infrared image and a temperature delta between the temperature of the component and the maximum temperature for the component is calculated to determine if there is a problem. A criticality level is assigned for each problem component from a plurality of criticality levels each having a predetermined range for the temperature delta. The criticality level provides an accurate and consistent assessment of component conditions. The inspection data is up linked to a home server from the portable computer and is made available to the customer via an interactive, on-line web application. The customer can interact with the inspection dating including an interactive prediction of energy savings if the problem component is repaired.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: November 9, 2010
    Assignee: Predictive Services, LLC
    Inventors: Donald Frankel, Joseph Cobb, Shawn Goertzen
  • Publication number: 20100278212
    Abstract: A circuit arrangement for generating light-dependent and temperature-dependent signals has a number of first and second sensor elements, which generate a number of first and second electrical signals. The first and second electrical signals depend on electromagnetic radiation impinging on the circuit arrangement. The first sensor elements are designed to generate the first electrical signals in a manner dependent on electromagnetic radiation from a first wavelength range which comprises a substantial part of the visible light. The second sensor elements are designed to generate the second electrical signals in a manner dependent on electromagnetic radiation from a second wavelength range which predominantly comprises infrared radiation. The first wavelength range overlaps the second wavelength range and it therefore also comprises infrared radiation.
    Type: Application
    Filed: May 4, 2010
    Publication date: November 4, 2010
    Inventors: Joachim N. BURGHARTZ, Franz Xaver Hutter, Daniel Brosch, Heinz-Gerhard Graf
  • Publication number: 20100265986
    Abstract: A tip assembly for an IR thermometer apparatus includes a heat sink having a heat sink cavity and a tip section and a fluid path and at least one hydraulic port. The tip assembly also includes an IR sensor mechanically seated in the tip section and thermally coupled to the heat sink. The tip assembly also includes an electrical connector configured to provide an electrical connection to the tip assembly. A fluid having a fluid temperature is introduced into the fluid path via the hydraulic port. The fluid causes the heat sink and the IR sensor to substantially reach one or more pre-determined temperatures by thermal conduction during calibration of the tip assembly. Another tip assembly having an internal heat source is described. Another tip assembly having an internal heat pump is described. A method to calibrate a tip assembly is also described.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 21, 2010
    Applicant: Welch Allyn, Inc.
    Inventors: Matthew D. Mullin, Michael J. Anson, John A. Lane, David E. Quinn, Henry J. Smith, Ray D. Stone
  • Publication number: 20100265988
    Abstract: Methods and apparatus for precise substrate cool down control are provided. Apparatus for measuring temperature of substrates may include a cool down plate to support a substrate; a sensor to provide data corresponding to a temperature of the substrate when disposed on the cool down plate; and a computer coupled to the sensor to determine the temperature of the substrate from the sensor data. A method for measuring the temperature of a substrate may include providing a substrate to be cooled to a chamber having a cool down plate disposed therein, a sensor to provide data corresponding to a temperature of the substrate, and a computer coupled to the sensor; sensing a first temperature of the substrate after a predetermined first time interval has elapsed; comparing the first temperature to a predetermined temperature; and determining whether the first temperature is greater than, equal to, or less than the predetermined temperature.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 21, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: JACOB NEWMAN, DINESH KANAWADE, HENRY BARANDICA, NIR MERRY
  • Patent number: 7815367
    Abstract: Disclosed in this specification is an infrared thermometer with multiple probes for use at a variety of bodily sites. The thermometer automatically detects which of the multiple probes is currently attached, loads a predetermined program from memory that corresponds to the current probe, and thereafter obtains a temperature measurement from a patient using infrared radiation emitted therefrom. Each of the probes is comprised of an infrared target which provides a substantially consistent sources of infrared radiation for the thermometer to measure.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: October 19, 2010
    Assignee: Welch Allyn, Inc.
    Inventors: John A. Lane, David E. Quinn
  • Publication number: 20100258726
    Abstract: A radiation power detector includes a thermal membrane that produces a voltage responsive to temperature differences. A radiation absorber is thermally coupled to the thermal membrane, and an indicator is coupled to the thermal membrane responsive to the temperature differences. The indicator is powered by voltage produced by the thermal membrane and signals the amount of radiation power to which the absorbing material is exposed.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: Honeywell International Inc.
    Inventors: Chunbo Zhang, Yue Liu, Steven J. Eichkhoff
  • Patent number: 7810992
    Abstract: This invention provides a non-contact temperature-measuring device including a distance sensor unit, an alarm unit, a temperature sensor unit, a microprocessor unit and a display unit. The distance sensor unit measures the distance between the device and a target. The alarm unit gives an alarm when the distance sensor unit measures a predetermined distance value. The temperature sensor unit measures a temperature of the target after the alarm unit gives the alarm. The microprocessor unit stores data of the predetermined distance value and the temperature value measured by the temperature sensor unit; the microprocessor unit also processes a distance signal emitted by the distance sensor unit and a temperature signal emitted by the temperature sensor unit. When the target's distance value equals the predetermined distance value, the microprocessor unit will further send a command for the alarm unit to give an alarm.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: October 12, 2010
    Assignee: Avita Corporation
    Inventors: Kun Sung Chen, Ying Chao Lin, Hsing Ou Yang
  • Publication number: 20100256945
    Abstract: Methods and apparatus are provided to determine the emissivity, temperature and area of an object. The methods and apparatus are designed such that the emissivity and area of the object may be separately determined as functions dependent upon the temperature of the object derived from a three or more band infrared measurement sensor. As such, the methods and apparatus may only require a regression analysis of the temperature of the object without any regression analysis of the emissivity and area of the object.
    Type: Application
    Filed: December 6, 2007
    Publication date: October 7, 2010
    Applicant: The Boeing Company
    Inventor: Ronald N. Murata
  • Publication number: 20100238970
    Abstract: A low temperature radiometer includes a main body, a main cavity, an exit cavity, a suspended thermometer, and an attached thermometer. The main cavity is disposed within the main body and is defined through an off-axis parabolic concentrating cone formed of the inner walls of the main body. The exit cavity is disposed within the main body and is defined through a cylindrical inner surface of the main body. The suspended thermometer is suspended within the exit cavity and is disposed to be in communication with radiation entering the main cavity and being diverted to the exit cavity. The attached thermometer is attached to the outer surface of the main body and is in thermal communication and contact with the main body.
    Type: Application
    Filed: September 16, 2009
    Publication date: September 23, 2010
    Applicant: United States of America as represented by the Ad- ministrator of the National Aeronautics and Space
    Inventors: Michael DiPirro, Thomas P. Hait, James G. Tuttle
  • Publication number: 20100232470
    Abstract: A method and system for calibrating temperature measurement devices, such as pyrometers, in thermal processing chambers are disclosed. According to the present invention, the system includes a calibrating light source that emits light energy onto a substrate contained in the thermal processing chamber. A light detector then detects the amount of light that is being transmitted through the substrate. The amount of detected light energy is then used to calibrate a temperature measurement device that is used in the system.
    Type: Application
    Filed: May 25, 2010
    Publication date: September 16, 2010
    Applicant: MATTSON TECHNOLOGY, INC.
    Inventor: Paul Janis Timans
  • Patent number: 7785002
    Abstract: A thermopile-based thermal detector is provided by a thermocouple, formed from a single sheet of material, which is made dissimilar with a P-doped and an N-doped junction electrically isolated via a naturally forming depletion region. The thermopile P-N sheet is uniform and planar, addressing stress and manufacturing issues. The usual non-active area of a conventional thermopile is significantly reduced or eliminated, and thus the output signal per unit diaphragm area of the detector is substantially increased, without the typical reduction in the signal-to-noise ratio. Also, a significant reduction in size of the thermal detector area is provided without a reduction in signal or signal-to-noise ratio. In an aspect, a second layer of thermocouples is axially positioned over, and connected with, a first layer of thermocouples. Additional axially stacked thermopiles can be provided within the same fabrication process. Signal processing circuitry may be electrically interconnected with the thermocouple.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: August 31, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: Brian E. Dewes, Pedro E. Castillo-Borelly
  • Patent number: 7787663
    Abstract: A system and method for detecting a thermal anomaly in humans and/or livestock. In one embodiment, the system includes an image capturing component that captures a visual image of incident light in a screening area, the image capturing component further operable to determine a first coordinate in the captured image, such as the location of a person's eyes. The system further includes a radiation capturing component operable to capture a thermal image of incident radiation in the screening area, the radiation capturing component further operable to determine an analysis area in the captured thermal image based upon the first coordinate in the captured light image. Finally, the system includes a processing component for determining thermal characteristics about the analysis area. As a result, if the thermal characteristics correspond to an alarm event, then an alarm may be triggered and the person or animal may be isolated for further health screening.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 31, 2010
    Assignee: Aptina Imaging Corporation, Inc.
    Inventor: Jason Hartlove
  • Publication number: 20100195697
    Abstract: Method and apparatus are provided for visibly outlining the energy zone to be measured by a radiometer. The method comprises the steps of providing a laser sighting device on the radiometer adapted to emit more than two laser beams against a surface whose temperature is to be measured and positioning said laser beams about the energy zone to outline said energy zone. The apparatus comprises a laser sighting device adapted to emit more than two laser beams against the surface and means to position said laser beams about the energy zone to outline said energy zone. The laser beams may be rotated about the periphery of the energy zone. The laser beams may be rotated about the periphery of the energy zone. In another embodiment, a pair of laser beams are projected on opposite sides of the energy zone. The laser beams may be further pulsed on and off in a synchronized manner so as to cause a series of intermittent lines to outline the energy zone.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 5, 2010
    Inventors: Milton Bernard Hollander, William Earl McKinley
  • Patent number: 7767927
    Abstract: Methods and apparatus for remotely measuring temperature of a specular surface. Method takes two measurements of P-polarized radiation emitted at or near Brewster angle from the surface. First measurement (SA) collects and detects first amount of radiation emitted directly from a surface portion using a collection optical system. Second measurement (SB) includes first amount of radiation and adds quantity of radiation collected at or near at/near Brewster angle and reflected from the surface with a retro optical system with a round-trip transmission t2 that retro-reflects a quantity of radiation received from surface portion back to same surface portion where it reflects and combines with first amount of radiation collected by collection optical system. Measurements SA and SB and t2 are used to determine surface emissivity (?). Calibration curve is used that relates ratio of the first measurement SA to surface emissivity (SA/?), to surface temperature.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: August 3, 2010
    Assignee: Ultratech, Inc.
    Inventor: David A. Markle
  • Patent number: 7762720
    Abstract: A method of coupling a silica fiber and a sapphire fiber includes providing a silica fiber having a doped core and a cladding layer, with the doped core having a prescribed diameter, providing a sapphire fiber having a diameter less than the doped core, placing an end of the sapphire fiber in close proximity to an end of the silica fiber, applying a heat source to the end of silica fiber and introducing the end of sapphire fiber into the heated doped core of the silica fiber to produce a coupling between the silica and sapphire fibers.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: July 27, 2010
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Yizheng Zhu, Anbo Wang