By Thermally Emitted Radiation Patents (Class 374/121)
  • Patent number: 6901089
    Abstract: The invention relates to instruments which include radiometers and which generate a laser beam for striking a target at a distance to assist in aiming the instrument at a selected area of a target. Provision is made for splitting a single beam, used for instance for centering the instrument on the target, into a plurality of beams for creating a pattern or for defining an area on the target. When a single beam is split, the resultant plural beams produced are of relatively lower power, which may be insufficient for visibility on a target at a distance. The invention provides apparatus to increase the power of the single laser beam when it is split, so as to provide plural beams of appropriately higher power and visibility.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: May 31, 2005
    Inventor: Milton Bernard Hollander
  • Patent number: 6883962
    Abstract: The temperature of the tread surface part of a tire is increased by running the tire in contact with a drum. The increase in the temperature of the tread surface part is due to the heat of friction between the tread surface part and the drum. Because large increases in temperature indicate that the friction is causing a large amount of wear, it is possible to forecast with ease the amount of wear of the tire from the increase in temperature of the tread surface part. The temperature of the tread surface part can be measured using a thermography machine, and the wear in the tread can be determined by looking at an image that shows the temperature.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: April 26, 2005
    Assignee: Bridgestone Corporation
    Inventor: Takayuki Kurata
  • Patent number: 6874932
    Abstract: A method facilitates inspection of a component surface. The method comprises positioning a surface of the component to be inspected in an optical path of at least one infrared radiation detector, heating the component surface using electromagnetic radiation to cause an increase in radiance from a defect present at the component surface, and detecting temperature variations within the component surface using the at least one infrared radiation detector, such that the surface irradiance is measured at predetermined locations across the component surface. The method further comprises detecting cracks in the component by analyzing radiation transient response data received by the infrared radiation detector, and correlating the temperature variations to the radiation transient response data to determine a depth of the detected cracks.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: April 5, 2005
    Assignee: General Electric Company
    Inventors: John William Devitt, Anthony S. Bauco, Craig Alan Cantello, Kevin G. Harding
  • Patent number: 6866417
    Abstract: An apparatus for measuring the temperature of workpieces transported on a conveyor is disclosed. In one broad aspect of the invention, the apparatus includes a translatable assembly which has a pick-up tool for picking up workpieces and a temperature-sensing device which is in proximity to the pick-up tool for measuring the temperature of the workpiece. Other embodiments are disclosed, including eliminating the pick-up tool, provided the temperature sensing device travels with the workpiece. Scanners can be utilized to designate the largest of the workpieces to be measured or for detecting overlapping workpieces. Feedback temperature control is achieved by varying a parameter, such as conveyor speed or a heat engine temperature. Also, a modeling module can be incorporated to assist with temperature control of the workpieces.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: March 15, 2005
    Assignee: FMC Technologies, Inc.
    Inventors: Ramesh Gunawardena, Corneel Constant Wijts, John E. Arnold, Norman A. Rudy
  • Patent number: 6863438
    Abstract: A micropatterned thermosensor, e.g., an infrared sensor, includes a supporting body and at least one thermocouple arranged thereon. The thermocouple also has a first material and a second material, which together form, at least in a pointwise manner, at least one thermal contact. Furthermore, it is provided that the first and/or the second material are configured at least regionally in the form of a meander-shaped or undulating-type circuit trace and extend on the supporting body. In addition, a micropatterned thermosensor having such patterned circuit traces, in which the first material is platinum or aluminum, and the second material is doped or undoped polysilicon-germanium.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: March 8, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Thorsten Pannek, Hans-Peter Trah
  • Patent number: 6860634
    Abstract: A method of temperature measurement for measuring a temperature of an object to be measured that is heated by a heating source in a multiplex-reflection environment by using two radiation thermometers provided at a measurement part separated from the object to be measured is provided.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: March 1, 2005
    Assignee: Tokyo Electron Limited
    Inventor: Takashi Shigeoka
  • Patent number: 6846106
    Abstract: A finger temperature detecting device includes a carrier, a finger-attachment member extending from the carrier, a temperature sensor mounted in the carrier for detecting skin temperature of the finger of the wearer, and means of informing the wearer when a temperature value detected by the temperature sensor is larger than the precedent reading. The finger-attachment member is wearable on a finger of a wearer and allows adjustment in wearing tightness to securely retain appropriate attachment of the temperature sensor to a fixed survey area of finger surface. In another embodiment, a seat extends from the carrier for receiving the temperature sensor.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: January 25, 2005
    Inventors: Mei-Yen Chen, Fong-Lin Jang
  • Patent number: 6847012
    Abstract: The invention relates to a device for measuring the temperature of substrates, notably semiconductor wafers. The device comprises at least one radiation sensor for measuring the radiation emitted by the substrate and an element (19) which restricts the field of vision of the radiation sensor and is positioned between the substrate and the radiation sensor. The substrate temperature can be determined correctly and simply, even if the substrate vibrates or is tilting, owing to the fact that the edges (20) of the element extend in a straight line. The invention also relates to a corresponding method.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: January 25, 2005
    Assignee: Steag RTP Systems GmbH
    Inventor: Markus Hauf
  • Patent number: 6840670
    Abstract: A non-contact temperature measuring apparatus is provided with spherical semiconductors mounted on a measurement object and a data collector disposed out of contact with the measurement object. Each spherical semiconductor has an electronic circuit which is operable using internal power created from electromagnetic energy supplied from the data collector, to thereby obtain temperature information. The data collector contactlessly determines a temperature of or a temperature distribution across the measurement object based on pieces of temperature information transmitted from the spherical semiconductors specified by pieces of identification information sequentially transmitted from the data collector.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: January 11, 2005
    Assignee: Yamatake Corporation
    Inventor: Shiro Kano
  • Patent number: 6840669
    Abstract: Optical methods and devices for measuring temperature and a second physical parameter, using a single photoluminescent probe material comprised of a single luminophor, and methods and devices for determining temperature-corrected values of said second physical parameter, which can be an oxygen or air pressure or a parameter chosen from the group comprising an electrical current, a magnetic field and an electrical field or voltage. The luminophor is excited sequentially by a first excitation light of chosen first wavelengths and intensity P1 which generates a first luminescence light of intensity I1, and a second excitation light of chosen second wavelengths and intensity P2 which generates a second luminescence light of intensity I2. The ratio (I2.P1/I1.P2) varies substantially in a known manner with varying temperature, substantially independent of the magnitude of said second physical parameter, thus providing a temperature correction factor to the measurement of said second physical parameter.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: January 11, 2005
    Inventor: Marcos Y. Kleinerman
  • Patent number: 6840671
    Abstract: Disclosed is a temperature sensing device and system including a processor, a memory, and optics for collecting incident infrared energy to produce a temperature signal. The device and system function in accordance with a disclosed method to derive one or more signal parameters from the infrared energy, such as signal strength and signal dilution, and compare the parameter(s) with acceptable, pre-defined limits. A filtered or unfiltered temperature indication is provided if all parameters lies within pre-defined limits, and a different temperature indication is displayed if one or more parameters exceeds pre-defined limits.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: January 11, 2005
    Inventors: William R. Barron, Jr., Thomas Larrick
  • Patent number: 6837615
    Abstract: A method of evaluating the level of anxiety and/or truthfulness of a person may include measuring the skin temperature of the person at at least three regions of the skin of the person, requesting the person to supply information, measuring the skin temperature at the at least three regions while the person supplies the information, and measuring the skin temperature at the at least three regions after the person supplies the information. The level of anxiety and/or truthfulness of the person may be determined based at least partially on a combination of the difference between the measured skin temperature of the person before the information is supplied and the measured skin temperature of the person while the information is supplied, and the difference between the measured skin temperature of the person while the information is supplied and the measured skin temperature of the person after the information is supplied.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 4, 2005
    Inventor: John Scott Newman
  • Patent number: 6837617
    Abstract: A method and a system for determining temperature and/or emissivity of an object by remote sensing are described. Based on the concept of temperature and emissivity determination, there are also developed a method and a system for the detection and recognition of an object that includes a plurality of sub-objects. The method for the detection and recognition of an object comprises acquiring, inter alia, electromagnetic radiation data of electromagnetic radiation emitted from a selected region in at least two spectral bands, recording and storing the required electromagnetic radiation data, deriving descriptive maps constituted by pixels of the selected region from the stored data and classifying the pixels of said descriptive maps of said selected region by pattern recognition processor means.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: January 4, 2005
    Assignee: Israel Aircraft Industries Ltd.
    Inventors: Yoseph Koltunov, Alexander Maximov, Igor Meltin, Motti Allon, Glen Guttman, Arik Kershenbaum
  • Publication number: 20040252747
    Abstract: An in-process verification system includes a base and a support. The base includes a holding location for holding and locating a sample of a material. The system also includes an infrared sensing system with a sensor head supported by the support above the base in spaced vertical registry with the base and aligned over the holding location. The infrared sensing system measures the infrared radiation emitted by the material and calculates the temperature of the material.
    Type: Application
    Filed: June 10, 2004
    Publication date: December 16, 2004
    Inventors: Leland Garvelink, James E. White, Mark Kemple
  • Patent number: 6830942
    Abstract: A method is disclosed for processing a silicon workpiece including a hybrid thermometer system for measuring and controlling the processing temperature where fabrication materials have been or are being applied to the workpiece. The hybrid thermometer system uses optical reflectance and another thermometer technique, such as a thermocouple and/or a pyrometer. Real-time spectral data are compared to values in a spectrum library to determine the “surface conditions”. A decision is then made based on the surface conditions as to how the temperature is measured, e.g., with optical reflectance, a pyrometer, or a thermocouple, and the temperature is measured using the appropriately selected technique. Utilizing the hybrid thermometer system, the temperature of a silicon workpiece may be accurately measured at low temperatures while accounting for the presence of fabrication materials.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: December 14, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Glenn B. Alers, Robert J. Chichester, Don X. Sun, Gordon Albert Thomas
  • Patent number: 6830373
    Abstract: The present invention relates to a temperature measurement device, particularly to a temperature measurement device for the cold junction of a non-contact temperature measurement element, characterized in that a plurality of electrical-conductive pins is provided on the bottom surface of a base.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: December 14, 2004
    Assignee: Opto Tech Corporation
    Inventors: Hung-Te Lin, Chung-Nan Chen, Chih-Hsiung Shen
  • Publication number: 20040240517
    Abstract: Remote sensing of the temperature of a greybody or blackbody radiator is effected by passing its radiation (24) through a modulated infrared filter spectrometer. The infrared filter comprises, in sequence, a band pass filter (20), a first polariser (21) which polarises the radiation, an electro-optical element (22) which splits the polarised radiation into two orthogonally polarised components, and a second polariser (23). A lens (28) images the radiation leaving the second polariser onto a detector (27). The electrical signal from the detector (27) is input to a numerical analyser. The electro-optical element (22), typically comprising a birefringent crystal assembly (25) and a birefringent trim plate (26), is configured so that the net optical delay of the orthogonally polarised components passed through it is such that the recombined components are at or near a peak or trough in their interferogram.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 2, 2004
    Inventor: John Howard
  • Publication number: 20040240518
    Abstract: A device (10) for continuous measurement of the temperature of molten metal in a furnace or recipient for its production and treatment comprises a heat analysis instrument (14) placed in a lance (12) which blows inert gas and/or high-pressure compressed air against a surface of metal slag (18) of a furnace or recipient (20).
    Type: Application
    Filed: April 6, 2004
    Publication date: December 2, 2004
    Inventors: Francesso Memoli, Volkwin Werner Koster
  • Publication number: 20040240516
    Abstract: The present disclosure provides a tympanic thermometer including a heat sensing probe defining a longitudinal axis and an outer surface extending from a distal end of the tympanic thermometer. The heat sensing probe includes a sensor housing extending to a distal end thereof. A sensor can is mounted with the sensor housing and a nozzle is mounted onto the sensor housing. The sensor can includes temperature sensing electronics for sensing temperature via the heat sensing probe. The nozzle includes a base disposed with the sensor housing and an elongated cylindrical nose portion disposed about the sensor housing. The nozzle is configured to direct heat flux to the distal end of the heat sensing probe. A probe cover is mountable to the distal end of the tympanic thermometer. The probe cover has an inner surface configured to engage an outer surface of the nozzle.
    Type: Application
    Filed: December 10, 2003
    Publication date: December 2, 2004
    Inventor: James Harr
  • Publication number: 20040233968
    Abstract: A first thermistor 8 and a second thermistor 9 are arranged forwardly and rearwardly of a thermopile sensor 5. A thermopile chip 55 is arranged and interposed between the first thermistor 8 and an integrated thermistor 57. A sensor cover is mounted in contact with front and side portions of a can portion 59 of a thermopile casing 56. A temperature or a radiant quantity of infrared rays on the front portion of the can portion is estimated from a temperature change of the integrated thermistor per second.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 25, 2004
    Applicant: Omron Corporation
    Inventors: Makoto Tabata, Hiroyuki Ota, Yoshihide Onishi, Yoshihiko Ogura, Tetsuya Sato, Taiga Sato
  • Patent number: 6821016
    Abstract: Temperature states of a clinical thermometer body and an environment are estimated by temperatures measured by a first temperature sensor integrally formed together with an infrared sensor arranged to the distal end of a probe and a second temperature sensor arranged on the bottom side of a probe holder, and processes suitable for the respective temperature states are performed. An estimation error or the reliability of an estimation value is calculated by the temperatures to notify a user of the estimation error or the reliability by an LCD or the like.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: November 23, 2004
    Assignee: Omron Corporation
    Inventors: Taiga Sato, Hiroyuki Ota, Tetsuya Sato, Yoshihide Onishi
  • Publication number: 20040228386
    Abstract: A first thermistor 8 and a second thermistor 9 are arranged forwardly and rearwardly of a thermopile sensor 5. A thermopile chip 55 is arranged and interposed between the first thermistor 8 and an integrated thermistor 57. A sensor cover is mounted in contact with front and side portions of a can portion 59 of a thermopile casing 56. A temperature or a radiant quantity of infrared rays on the front portion of the can portion is estimated from a temperature change of the integrated thermistor per second.
    Type: Application
    Filed: June 25, 2004
    Publication date: November 18, 2004
    Applicant: Omron Corporation
    Inventors: Makoto Tabata, Hiroyuki Ota, Yoshihide Onishi, Toshihiko Ogura, Tatsuya Sato, Taiga Sato
  • Patent number: 6817758
    Abstract: Method and apparatus for measuring a surface temperature of an object body, by calculating a temperature at each picture element of an image of the object body, on the basis of a radiant intensity ratio at each pair of corresponding picture elements of a first and a second image which are obtained with respective radiations having respective first and second wavelengths which are selected from a light emitted from the surface of the body, by a first filter which permits transmission therethrough a radiation having the first wavelength which is selected according to a radiant intensity curve corresponding to a wavelength of a black body at a lower limit of a temperature measurement range, and which is within a high radiant intensity range in which the radiant intensity is higher than a radiant intensity at a normal room temperature, and a second filter which permits transmission therethrough a radiation having the second wavelength which is selected within the high radiant intensity range, such that the second
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: November 16, 2004
    Assignees: Noritake Co., Limited
    Inventors: Kenji Yano, Misao Iwata, Miyuki Hashimoto, Kuniyuki Kitagawa, Norio Arai
  • Patent number: 6817757
    Abstract: A system and method of monitoring food information in a food service facility. Each of a plurality of remote sensor units may be installed at a food receptacle. Each remote sensor unit gathers temperature or other food data from at least two sources, which may be built-in or auxiliary temperature sensors, intelligent food receptacles, or other external food data sources. The collected data may be transmitted, witlessly or not, to a central computer.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: November 16, 2004
    Assignee: A la Cart, Inc.
    Inventor: Thomas E. Wallace
  • Publication number: 20040223533
    Abstract: The thread engagement verifier system provides for verifying the quality of a threaded connection 12 between upper and lower for tubular member 16, 18. One or more thermal radiation sensors 14 are used in combination with a data acquisition and processing computer 20 and an output device, such as a video display 12.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 11, 2004
    Inventors: Raymond Dishaw, Terry Eckel
  • Patent number: 6814484
    Abstract: Method and apparatus for measuring a surface temperature of an object body, by calculating a temperature at each picture element of an image of the object body, on the basis of a radiant intensity ratio at each pair of corresponding picture elements of a first and a second image which are obtained with respective radiations having respective first and second wavelengths which are selected from a light emitted from the surface of the body, by a first filter which permits transmission therethrough a radiation having the first wavelength which is selected according to a radiant-intensity curve corresponding to a wavelength of a black body at a lower limit of a temperature measurement range, and which is within a high radiant-intensity range in which the radiant intensity is higher than a radiant intensity at a normal room temperature, and a second filter which permits transmission therethrough a radiation having the second wavelength which is selected within the high radiant-intensity range, such that the second
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: November 9, 2004
    Assignees: Noritake Co., Limited
    Inventors: Kenji Yano, Misao Iwata, Miyuki Hashimoto, Kuniyuki Kitagawa, Norio Arai
  • Publication number: 20040218661
    Abstract: Apparatus for determining the temperature profile of the surface being sprayed or otherwise treated, the apparatus comprising four electric arc spray guns (1) spraying molten steel. The guns (1) are connected to a six-axis industrial robot (2) which is adapted to move them over the surface of the ceramic substrate.(3). The metal deposited by the spray builds up a metal shell referred to as the sprayform. The temperature profile of the sprayform surface (3) is recorded periodically by a thermal imaging camera (4) positioned directly above the surface (3). When the field of view of the camera (4) is not obscured by the robot (2), the arc spray guns (1) or their cables (5), the thermal image of the whole sprayform surface (3) can be recorded.
    Type: Application
    Filed: February 20, 2004
    Publication date: November 4, 2004
    Inventors: Paul Jones, Stephen Richard Duncan, Ronald Daniel
  • Publication number: 20040218659
    Abstract: Sensing in an elevated-temperature environment is provided using a sensor system having a sensor housing with an exterior wall with a window-support region having an outwardly facing external face, and a window through the window-support region of the exterior wall and affixed to the exterior wall. A sensor unit contained within the sensor housing receives an input signal through the window. A thermal-insulation layer is on the external face of the window-support region of the exterior wall at a location immediately adjacent to the window. The sensor system is operated in an environment wherein the window-support region of the exterior wall is heated to a temperature of greater than about 100° C. in the event that no thermal-insulation layer is present. In a typical application, the sensor system is attached to an aircraft such that the external face is in a forward-facing orientation, and the aircraft is operated such that the external face is heated by aerodynamic heating.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventors: William H. Wellman, Aldon L. Bregante, Rao S. Ravuri
  • Patent number: 6811306
    Abstract: An infrared ear thermometer includes a detector head housing, a heat sink, a recess formed in the heat sink, a thermopile sensor mounted within the recess, a thermistor, and temperature determination circuitry. The recess defines an aperture that limits the field of view of the thermopile sensor. The thermal capacities and conductivities of the heat sink and the thermopile sensor are selected so that the output signal of the thermopile sensor stabilizes during a temperature measurement. A method of determining temperature using the ear thermometer takes successive measurements, stores the measurements in a moving time window, averages the measurements in the moving window, determines whether the average has stabilized, and outputs an average temperature.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: November 2, 2004
    Inventor: Jonathan Gerlitz
  • Publication number: 20040184508
    Abstract: The invention provides a temperature monitoring system for a semiconductor test handler. A preparation stage brings a test device to a predetermined temperature for testing at a test platform at said predetermined temperature. At least one radiation sensor, such as a thermopile device, is employed in the test handler for detecting a surface temperature of the test device by measuring radiation emitted from the test device.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Applicant: ASM Assembly Automation Ltd.
    Inventors: Ching Man Stanley Tsui, Sai Kit Wong, Shing Kai Yip
  • Patent number: 6793389
    Abstract: An integrated sensor comprising a thermopile transducer and signal processing circuitry that are combined on a single semiconductor substrate, such that the transducer output signal is sampled in close vicinity by the processing circuitry. The sensor comprises a frame formed of a semiconductor material that is not heavily doped, and with which a diaphragm is supported. The diaphragm has a first surface for receiving thermal (e.g., infrared) radiation, and comprises multiple layers that include a sensing layer containing at least a pair of interlaced thermopiles. Each thermopile comprises a sequence of thermocouples, each thermocouple comprising dissimilar electrically-resistive materials that define hot junctions located on the diaphragm and cold junctions located on the frame. The signal processing circuitry is located on the frame and electrically interconnected with the thermopiles.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 21, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Abhijeet V. Chavan, James H. Logsdon, Dan W. Chilcott, Han-Sheng S. Lee, David K. Lambert, Timothy A. Vas
  • Publication number: 20040179575
    Abstract: An on-engine radiation thermometer that simultaneously measures, through a common optical waveguide probe, long wavelength infrared radiation and short wavelength radiation, enables accurate temperature measurement and condition monitoring of ceramic thermal barrier coatings used on metal blades of gas turbine engines. This in turn enables operation at higher combustion temperatures, thereby optimizing coating use, and provides warning signals that are indicative of potential blade failure due to barrier coating spall and other conditions.
    Type: Application
    Filed: January 12, 2004
    Publication date: September 16, 2004
    Inventor: James R. Markham
  • Patent number: 6789936
    Abstract: The invention is directed to an infrared thermometer and a temperature calculation method suitable for determining the body temperature at different measurement sites, for example, on a person's forehead or in the ear. The thermometer includes a device for attaching a demountable probe head. Provision is made for different probe heads that are adapted to fit the different measurement sites.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: September 14, 2004
    Assignee: Braun GmbH
    Inventors: Bernhard Kraus, Frank Beerwerth, Klaus Amsel
  • Patent number: 6786637
    Abstract: The temperature of an electronic device at specified locations is determined by measuring the phonon frequency shift at the location of interest caused by operation of the device.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: September 7, 2004
    Assignee: The University of Bristol
    Inventors: Martin Hermann Hans Kuball, Jonathan Michael Hayes
  • Patent number: 6786634
    Abstract: A method of measuring a temperature of an object body in an electric furnace, based on an intensity of a radiant energy emitted from the object body, the electric furnace being provided with an electric heater operable by application of a drive voltage thereto to heat the object body, the method comprising: a radiant-energy detecting step of detecting an intensity of a radiant energy emitted from the object body; a stray-light noise eliminating step of determining as a noise an intensity of a radiant energy of a stray light which is emitted from an inner wall surface of the electric furnace toward the object body and reflected by a surface of the object body, according to a predetermined relationship between the intensity of the radiant energy of the stray light and the drive voltage applied to the electric heater and based on an actually applied value of the drive voltage, and subtracting the intensity of the radiant energy of the stray light determined as the noise, from the detected intensity of the radian
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: September 7, 2004
    Assignees: Noritake Co., Limited, Kuniyuki Kitagawa
    Inventors: Miyuki Hashimoto, Kenji Yano, Misao Iwata, Kuniyuki Kitagawa, Norio Arai
  • Publication number: 20040170215
    Abstract: An imager temperature sensor and a current correction apparatus are provided which use dark pixel measurements from an imager chip during operation together with a fabrication process constant as well as a chip dependent constant to calculate chip temperature. The chip temperature may be used to generate a current correction signal. The correction signal is used to tune a current on the imager chip to correct for temperature variations.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 2, 2004
    Inventors: Giuseppe Rossi, Gennadiy A. Agranov
  • Publication number: 20040156420
    Abstract: A pyrometer for use in measuring temperatures in a furnace, has a lens-tube for supporting an optical head in a port of the furnace for viewing an interior of the furnace along a line of sight. The optical head converts infrared radiation to electrical signals. A photometer circuit connected to the optical head processes the electrical signals and a scaling circuit connected to the photometer circuit scales the electrical signals. An output circuit connected to the scaling circuit receives the scaled electrical signals and produces output signals for display or control of the furnace. A power supply connected to the scaling circuit powers the photometer, scaling and output circuits. Calibration in the scaling circuit scales the electrical signals to be most sensitive to a wavelength of middle infrared radiation to which at least one gas component in the furnace is semi-transparent, for measuring the temperature of the at least one gas component.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 12, 2004
    Inventors: John T. Huston, John W. Berthold, Thomas E. Moskal
  • Publication number: 20040151229
    Abstract: A signal (Snormai) is provided to a heat element of a temperature sensor, which is recorded as a step response (Lruh, Lbew). From the difference of the step response compared with the reaction adaptively determined with the temperature sensor at zero air circulation, air flow or no air flow is determined.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Inventor: Anton Ruettiger
  • Publication number: 20040141543
    Abstract: A method for obtaining position data relating to a probe in the ear canal whereby a probe is inserted into the ear canal, the method further comprising the steps of:—determine the distance from the distal portion of the probe to at least one point of the internal circumferential surface of the ear and/or car canal,—obtaining position data using first transducing means associated with the distal portion of the probe and second transducing means fixed relative to the head of the person, where the first transducing means is transmitting a magnetic field, and the second transducing means are detecting the magnetic field generated by the transmitter. The invention also relates to an apparatus for obtaining position data relating to a probe in the ear canal.
    Type: Application
    Filed: November 19, 2003
    Publication date: July 22, 2004
    Inventors: Preben Damgard Jensen, Tom Olesen
  • Patent number: 6758595
    Abstract: In the imaging pyrometer, at least three types of pixels (L, S, V) for sensing electromagnetic radiation in at least three different spectral ranges are arranged in a mosaic pattern. In a neighborhood, there are two types of pixels with relatively narrow spectral sensitivity ranges in the infrared (IR), a first one (L) for sensing longer IR wavelengths and the other one (S) for shorter IR wavelengths. Additionally, there is a third pixel type (V) present for receiving electromagnetic radiation in a broader band such as the visible part of the electromagnetic spectrum. This is preferably realized by placing a mosaic filter pattern directly on pixels of an appropriate optoelectronic image sensor, for example by evaporation and photolithographic definition.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: July 6, 2004
    Assignee: Csem Centre Suisse d' Electronique et de Microtechnique SA
    Inventor: Peter Seitz
  • Publication number: 20040114661
    Abstract: A method and apparatus for maintaining a viewing window of a detector substantially clean includes enclosing the detector within a housing, and moving a target surface relative to the viewing window to create an airflow adjacent the viewing window. The housing can include an aperture through which the viewing window of the sensor views the target surface. Motion of the target surface creates an airflow velocity adjacent the viewing window for maintaining the viewing window substantially clean. To increase the accuracy of the detector, a high emissivity area is provided on an outside surface of the housing which faces the target surface.
    Type: Application
    Filed: August 29, 2003
    Publication date: June 17, 2004
    Applicant: Exergen Corporation
    Inventor: Francesco Pompei
  • Patent number: 6749334
    Abstract: An ear thermometer probe structure comprises a shell body. A hollow thermal absorption component is disposed in the shell body, and contacts several positioning points one the inner wall of the shell body. An air gap is formed at the part of the thermal absorption component not contacting the shell body. A wave guide is disposed in the thermal absorption component. The rear section of the wave guide tightly contacts the thermal absorption component, and the front section thereof is separated from the shell body by an air gap. A filter is disposed at the front end of the wave guide to let infrared rays be transmitted. An annular sealing pad is located between the filter and the top of the shell body. A sensor is disposed behind the wave guide and fixed on the thermal absorption component. The sensor is separated from the thermal absorption component and the wave guide by an annular air room.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: June 15, 2004
    Assignee: Radiant Innovation Inc.
    Inventor: Kevin Lin
  • Publication number: 20040109489
    Abstract: A test wafer for use in wafer temperature prediction is prepared. The test wafer includes: first semiconductor layer formed in a crystalline state; second semiconductor layer formed in an amorphous state on the first semiconductor layer; and light absorption film formed over the second semiconductor layer. Next, the test wafer is loaded into a lamp heating system and then irradiating the test wafer with a light emitted from the lamp, thereby heating the second semiconductor layer through the light absorption film. Thereafter, a recovery rate, at which a part of the second semiconductor layer recovers from the amorphous state to the crystalline state at the interface with the first semiconductor layer, is calculated. Then, a temperature of the test wafer that has been irradiated with the light is measured according to a relationship between the recovery rate and a temperature corresponding to the recovery rate.
    Type: Application
    Filed: June 23, 2003
    Publication date: June 10, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoshi Shibata, Yuko Nambu
  • Publication number: 20040109490
    Abstract: A temperature determining device is composed of a temperature detecting unit that detects a temperature of a determination object member based on an intensity of infrared rays from the object member, a unit for determining a temperature for correction that determines a temperature of an opposing member opposed to the object member or a temperature of a member whose temperature changes in correlation to a change in the temperature of the opposing member, and a calculating unit that corrects the detected temperature obtained by the temperature detecting unit using the temperature as the temperature for correction obtained by the unit for determining a temperature for correction. Thus, stable temperature determination can be performed accurately without being influenced by infrared rays from around a determination object member.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 10, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenji Asakura, Keisuke Fujimoto, Masaaki Nakano
  • Patent number: 6742925
    Abstract: The verification of accuracy of an IR thermometer is provided at any temperature in the range of −25° C. to +100° C., preferably at the room temperature. The magnetic surface of a thermo-conductive mat of the present invention is applied to any metallic surface in a room. The user waits to give the contact thermometer arranged on the mat time to reach thermal equilibrium, and then aims the beam of the IR thermometer at the black body target on the mat. The reading of the IR thermometer is then compared with the reading of a contact thermometer, which is attached to the mat adjacent to the black body target. The lightweight, portable, low-cost temperature verification mats of the present invention can be used for verification of IR thermometers in different customer environments, such as in industrial environments, and with retail equipment, or home appliances, including ovens and freezers, etc.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: June 1, 2004
    Assignee: Cole-Parmer Instrument Company
    Inventor: Wilhelm Maccarone
  • Patent number: 6742927
    Abstract: The invention relates to an infrared thermometer wherein control means signal or determine a correct positioning of the intensity transducer tasked with measuring the infrared radiation emitted by the patient whose temperature needs to be known.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: June 1, 2004
    Assignee: La Tecnica S.r.l.
    Inventor: Francesco Bellifemine
  • Publication number: 20040095985
    Abstract: The invention provides a dual-use infrared thermometer, including a main body and a probe, wherein the probe is formed at the top end of the main body; a hollow sleeve, whose shape is corresponding to the probe to be sleeved onto the probe for forming a forehead-type probe; and a temperature detection device, provided inside the main body to sense the infrared emissions and then convert the emissions into electronic signal, while a build-in temperature calibration procedure is employed to calculate the measured temperature. Alternatively,an interface switch device is provided on the surface of the probe, extending to the internal of the main body to be electrically connected to the temperature detection device. Thus, by detecting whether the hollow sleeve has been sleeved on the probe, the temperature detection device will be activated to switch to either the ear temperature calibration procedure or the forehead temperature calibration procedure.
    Type: Application
    Filed: August 12, 2003
    Publication date: May 20, 2004
    Inventors: Kun Yuan Ko, Tao Cheng Lu
  • Patent number: 6738724
    Abstract: The invention provides a passive two-stage multiwavelength approach for measuring temperature, emissivity and stray-light levels.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: May 18, 2004
    Inventor: Devon R. McIntosh
  • Patent number: 6733173
    Abstract: A pyrometer for use in measuring temperatures in a furnace, has a lens-tube for supporting an optical head in a port of the furnace for viewing an interior of the furnace along a line of sight. The optical head converts infrared radiation to electrical signals. A photometer circuit connected to the optical head processes the electrical signals and a scaling circuit connected to the photometer circuit scales the electrical signals. An output circuit connected to the scaling circuit receives the scaled electrical signals and produces output signals for display or control of the furnace. A power supply connected to the scaling circuit powers the photometer, scaling and output circuits. Calibration in the scaling circuit scales the electrical signals to be most sensitive to a wavelength of middle infrared radiation to which at least one gas component in the furnace is semi-transparent, for measuring the temperature of the at least one gas component.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: May 11, 2004
    Assignee: Diamond Power International, Inc.
    Inventors: John T. Huston, John W. Berthold, Thomas E. Moskal
  • Patent number: 6735379
    Abstract: A radiant energy sensor is adapted to detect radiant heat energy incident on a surface. The energy sensor has a body portion with a pair of sides. A temperature sensor is located on each side of the body portion. In use the body portion is mounted on the surface such that one of the sensors is located between the body portion and the surface, thereby being masked by the body portion from heat energy otherwise incident on the surface.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: May 11, 2004
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Andrew Paul Maxwell Salmon, Mark John Arrowsmith, Tak-Ming Chung, Erwin J. Meyer