By Electrical Or Magnetic Heat Sensor Patents (Class 374/163)
  • Patent number: 8061895
    Abstract: There is provided a semiconductor device which can maintain a high tuning accuracy while suppressing a cost increase and suppress an increase in the time required for tuning. There are included, in addition to variable resistors configuring a level shift circuit, an additional resistor coupled between the output node of a VBGR voltage of a BGR circuit and one of the variable resistors and an additional resistor coupled between the other of the variable resistors and a reference voltage. N-channel MOS transistors are coupled in parallel with the additional resistors, respectively.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: November 22, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Masaki Tsukude
  • Publication number: 20110280281
    Abstract: Apparatus for measuring the temperature of a host electrical cable, comprising a sensor; the sensor comprising a first temperature sensing element which communicates readings representative of the temperature of the host electrical cable to a data acquisition device, and a the second temperature sensing element which communicates readings representative of ambient air temperature to a data acquisition device which translates the readings of the temperature sensing elements into a value of the rise of the temperature of the host electrical cable over the ambient air temperature.
    Type: Application
    Filed: June 17, 2011
    Publication date: November 17, 2011
    Applicant: QHi Group Limited
    Inventor: Ross Kennedy
  • Patent number: 8050006
    Abstract: A method of providing overload and short-circuit protection for a Switched Mode Power Supply (SMPS). The method may rely upon sensing a temperature change rate for a component of the SMPS and implementing a protection scheme when the temperature change rate exceeds a desired temperature change rate. The implementation scheme may include permanently or temporarily shutting-off the component.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 1, 2011
    Assignee: Lear Corporation GmbH
    Inventors: Matthias Doppel, Gunther Grabner
  • Patent number: 8047713
    Abstract: Provided is a plasmon resonance detector that can detect temperature change in optical devices, in which the metal structure having plasmon resonance absorption is used for the optical devices. A diode formed of a conductive substrate, an n-type semiconductor layer, an i-type semiconductor layer, a p-type semiconductor layer, an n electrode (negative electrode), a p electrode (positive electrode), an insulating film, or the like is used as a semiconductor device whose resistance value changes in accordance with temperature change. A nanochain formed by connecting a plurality of metal nanoparticles is disposed on this diode. When the nanochain is irradiated with light, the nanochain generates heat. The heat generated in the nanochain is conducted to the diode. The resistance value of the diode changes in accordance with temperature change, and thus this change is read, a temperature or an amount of heat generation of the nanochain is measured, and existence and strength of the plasmon resonance are detected.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: November 1, 2011
    Assignee: Rohm Co., Ltd.
    Inventors: Kosei Ueno, Hiroaki Misawa, Dai Ohnishi, Takui Sakaguchi, Yoichi Mugino
  • Patent number: 8042998
    Abstract: A method for detecting a fault of an oil temperature sensor of an automatic transmission by using a determining means for detecting the fault of the oil temperature sensor. The method includes any one or more of the steps of 1) determining the fault of the oil temperature sensor by comparing minimum and maximum output values of the oil temperature sensor in every driving mode, 2) determining the fault of the oil temperature sensor by detecting abnormal excessive increase and decrease of the oil temperature for a specific duration, 3) determining the fault the oil temperature sensor in the stuck state in the driving mode when transmission oil temperature increases, and 4) determining the fault of the oil temperature sensor by detecting the oil temperature exceeding a predetermined temperature based on the time when the engine is left at a stopped state.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: October 25, 2011
    Assignee: Kefico Corporation
    Inventors: Young-Sun Choi, Sung-Teag Cho, Yoon-Sang Yoon, Hyong-Kyu Kim, Jang-Sun Sim
  • Publication number: 20110249701
    Abstract: The invention pertains to flexible devices used for zero-heat-flux, deep tissue temperature measurement, especially to disposable temperature measurement devices. Such a device is constituted of a flexible substrate. An electrical circuit is disposed on a side of the substrate. The electrical circuit includes first and second thermal sensors disposed, respectively, on first and second substrate layers. A heater trace is disposed on the first substrate layer with the first thermal sensor. The first and second substrate layers are separated by a flexible layer of insulation disposed between the first and second substrate layers. The heater trace defines a heater with a central portion that operates with a first power density and a peripheral portion around the central portion that operates with a second power density greater than the first power density.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 13, 2011
    Applicant: Arizant Healthcare Inc.
    Inventors: Mark T. Bieberich, Gary L. Hansen, Ryan J. Staab, Albert P. Van Duren, Allen H. Ziaimehr
  • Publication number: 20110235676
    Abstract: A thermal detector includes a thermal detection element, a support member, and a fixing part supporting the support member. The support member mounts and supports the thermal detection element on a second side thereof with a first side thereof facing a cavity. The support member includes a first layer member disposed on the second side and having a residual stress in a first direction, and a second layer member laminated on the first layer member on the first side and having a residual stress in a second direction opposite to the first direction. A thermal conductance of the first layer member is less than a thermal conductance of the second layer member.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 29, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takafumi NODA, Jun TAKIZAWA
  • Publication number: 20110228812
    Abstract: A temperature sensor having a weld zone between an element electrode wire and a sheath core wire. When a section of the weld zone is taken orthogonally to the axial direction and in such a manner as to pass through a center point, L/D is greater or equal to 0.6, wherein D represents the diameter of the element electrode wire, and L represents the length of a chord connecting a first weld point and a second weld point as defined herein.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 22, 2011
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Tatsuya Suzuki, Go Hanzawa, Takeshi Morita, Akihiro Fukata, Ken Masuda
  • Patent number: 8021039
    Abstract: An apparatus is disclosed designed to monitor the thermal status of a quality control material. The apparatus has the ability, with visual and/or audible means, to alert the user when the quality control material has become thermally equal to the local, ambient environment by way of natural thermal entropy. The apparatus alerts the user by visual and/or audible indicators when the quality control material, after removal from the monitor, should be returned to cool storage after a pre-determined period to maintain its designed criteria, integrity and/or purpose.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: September 20, 2011
    Inventor: Frank Amato
  • Publication number: 20110222580
    Abstract: A thermometer is constituted by a body member and a tip member secured to the body member. A thermal sensor is mounted on the inside of the tip member, adapted for sensing a temperature and producing a temperature signal. A set of leas wires is coupled to the thermal sensor for transmission of the temperature signal. A display unit is disposed on the body member and a processor is disposed to electrically connect the set of lead wires to receive the temperature signal and drive the display unit for display of a corresponding temperature reading. A rear cover is secured to the body member. A mechanical selector is disposed between the processor and the rear cover and the type of temperature scale displayed in the display unit is selected by pushing the mechanical selector from the rear cover.
    Type: Application
    Filed: September 27, 2010
    Publication date: September 15, 2011
    Applicant: MESURE TECHNOLOGY CO., LTD.
    Inventor: Chu-Yih Yu
  • Patent number: 7997795
    Abstract: Temperature sensors and methods of manufacturing thereof, having an intermediate stop disposed along a set of wires, the intermediate stop is secured to the set of wires such that an insulator can be properly positioned around proximal end portions of the set of wires during assembly of the temperature sensor.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: August 16, 2011
    Assignee: Watlow Electric Manufacturing Company
    Inventors: William H Schwagerman, Robert K Frake
  • Publication number: 20110188539
    Abstract: An indication apparatus for indicating temperature status of a motherboard includes a detection module, a comparison module, a switch module, and an indication module. The detection module detects temperatures of the motherboard, and converts the detected temperatures to voltage signals. The comparison module receives the voltage signals, compares the voltage signals with a first reference voltage, and outputs control signals according to a comparison result. The switch module receives the control signals, and turns on or off according to the control signals. The indication module indicates temperature states of the motherboard when the switch module turns on or off.
    Type: Application
    Filed: April 30, 2010
    Publication date: August 4, 2011
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: ZONG-BAO XIAO
  • Patent number: 7988353
    Abstract: An electronic thermometer includes a temperature sensing means for sensing a temperature of a part to be measured, a prediction means fro predicting an equilibrium temperature by using the temperature being sensed, and a temperature display means having a temperature display unit. The temperature display means switches the display of the temperature display unit from the predicted temperature predicted by the prediction means to the actual measured temperature sensed by the temperature sensing means, based on a variation state of a peak of the temperature sensed by the temperature sensing means. Accordingly, a variation in displayed temperature is reduced, when the display switching is performed from the predicted temperature to the actual measured temperature, and a determination of the display switching from the predicted temperature to the actual measured temperature can be achieved by a simple circuit.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: August 2, 2011
    Assignee: Citizen Holdings Co., Ltd.
    Inventors: Tetsuya Yamamoto, Isamu Kobayashi
  • Patent number: 7988355
    Abstract: An electronic thermometer is configured for ease and accuracy in construction. A probe of the thermometer includes a flex circuit containing electronic components used to measure temperature and transmit signals to a calculating unit of the thermometer. A resilient locator can function to pre-position the flex circuit prior to final fixation so that the electronic components are reliably positioned in manufacture.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 2, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Joseph T. Gierer
  • Publication number: 20110182323
    Abstract: A detection device includes a heat sensing element, a detection circuit connected to a detection node of the heat sensing element, and a read circuit connected to a read node of the detection circuit, wherein the detection circuit includes a drive transistor whose gate is controlled by the detection node. In a program period the detection node is programmed to a voltage value corresponding to the threshold voltage of the drive transistor, and in a read period following the program period the read circuit reads the detection result of the detection circuit.
    Type: Application
    Filed: January 25, 2011
    Publication date: July 28, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroshi HORIUCHI
  • Patent number: 7985021
    Abstract: A probe includes a sensing element and a carrier for the sensing element. The carrier has an integrated device for guiding an air stream to the sensing element, and a long axis perpendicular to a plane defined by the flow direction of the air stream. The probe is substantially symmetric with respect to the plane.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: July 26, 2011
    Assignee: EPCOS AG
    Inventors: Oliver Bard, Bernhard Ostrick
  • 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: 20110158283
    Abstract: An apparatus, system and method for temperature measurement of a target site, such a human body site. The invention includes an intelligent temperature probe configured to physically contact a target site and to communicate with a host device, which can be implemented as a hand-held device or as a personal computer. The host device can compute, store and display an accurate predicted temperature, or an actual temperature at thermal equilibrium, of the target site for each of a plurality of different intelligent temperature probes that each have unique and varied operating characteristics. A set of unique operating characteristics for each temperature probe is represented by information communicated between each respective temperature probe and the host device.
    Type: Application
    Filed: December 31, 2009
    Publication date: June 30, 2011
    Applicant: WELCH ALLYN, INC.
    Inventors: Craig M. Meyerson, David E. Quinn, John A. Lane, Anthony P. Wagner, Matthew J. Kinsley, Scott A. Martin, Matthew D. Mullin
  • Publication number: 20110158284
    Abstract: An electronic thermometer includes first and second body surface temperature measurement portions to measure first and second values of a measurement object, first and second reference temperature measurement portions to measure values at each position having a predetermined thermal resistance relative to a measurement position of the first and second values, and having a first and second thermal resistance relative to the open air, third temperature measurement portion to measure a third value at a different position from the previous values, correction portion to correct the obtained values; and core body temperature calculation portion to calculate a value of the object using the obtained values.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 30, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kenji GOTO
  • Publication number: 20110158285
    Abstract: Provided is a temperature detection system which is low in cost. The temperature detection system includes a plurality of temperature detection ICs (10) for detecting an abnormal temperature and a resistor (20). Each of the plurality of temperature detection ICs (10) includes a reference voltage terminal connected to an output terminal of one of the plurality of temperature detection ICs (10) located at a preceding stage. The resistor (20) is provided between an output terminal of one of the plurality of temperature detection ICs (10) located at the final stage and a ground terminal.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Inventor: Atsushi Igarashi
  • Patent number: 7969227
    Abstract: According to one embodiment, a temperature detection circuit is provided which requires only a small number of additional components, thus minimizing an increase in costs and which offers an insulating property and high responsiveness. A temperature detection circuit outputs a first PWM signal corresponding to a temperature of a first temperature sensor from a photointerrupter as a signal insulated from the first temperature sensor. A temperature detection circuit outputs a second PWM signal corresponding to a temperature of a second temperature sensor from a photointerrupter as a signal insulated from the second temperature sensor. A controlling arithmetic apparatus calculates a higher one of the temperatures detected by the first and second temperature sensors based on the PWM signals output from the photointerrupter.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 28, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryuta Hasegawa, Ryuichi Morikawa, Nobumitsu Tada, Masami Hirata
  • Publication number: 20110150027
    Abstract: Temperature-indicting system including a mechanical temperature-indicating system including a bourdon tube for directly driving an indicating pointer, and an electrical temperature-indicating system including an electronic sensor, a transmitter and one or more electrical switches. The transmitter is modular and easily replaceable. Output of the pointer and the transmitter is synchronized relative to accuracy so that comparison of switch points of the switches that correlate temperature determined by the mechanical system and temperature determined by the electronic system enables detection of a failure or inaccuracy in one or both systems.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Applicant: Weiss Instruments, Inc.
    Inventor: John Weiss
  • Publication number: 20110134961
    Abstract: A method of producing a temperature measuring sensor including an insulating substrate having a top surface and a bottom surface, the top surface including a first area and a second area, and a first contact and a second contact being formed in the first area, the above contacts having a structured measuring film located therebetween: creating a conductive connection between the first contact on the top surface of the insulating substrate and the bottom surface of the insulating substrate, and a first conductive layer as a first terminal area of the temperature measuring sensor on the bottom surface such that the first conductive layer is electrically connected to the conductive connection, as well as a second conductive layer on the second area of the top surface as a second terminal area of the temperature measuring sensor such that the second conductive layer is in contact with the second contact.
    Type: Application
    Filed: June 29, 2007
    Publication date: June 9, 2011
    Inventors: Georg Bernitz, Heinrich Zitzmann
  • Patent number: 7954995
    Abstract: A sensor arrangement includes, in some embodiments, a magnetostrictive element configured to output magnetic signals in response to a magnetic field. A sensor is configured to sense a value of a property of a selected object, and to provide an electrical resistance that varies in response to variations in the sensed value. The sensor cooperates with the magnetostrictive element to vary the frequency of the signals output by the magnetostrictive element based on variations of the electrical resistance provided by the sensor. A transmitter provides an alternating magnetic field to the magnetostrictive element, and a receiver picks up the magnetic signals generated by the magnetostrictive element. The frequency of the signals received is correlated with the sensor resistance, and the resistance is correlated to a value of the property sensed.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 7, 2011
    Assignee: Ford Global Technologies, LLC
    Inventors: Philip Gonzales, Ronald Elder
  • Patent number: 7950848
    Abstract: A sheath type measuring instrument can be mounted in place easily and smoothly without the need for boring holes in an outer wall and an inner wall with high positional accuracy and also for a complex process, even if a barrel is to be fixed to the outer wall while a tip end of a sheath is being inserted in a sheath insertion hole bored in an inner wall. The sheath type measuring instrument has a sheath having a tip end for being brought closely to or into contact with a measurand for measuring a physical property of the measurand, and a barrel holding a proximal portion of the sheath for movement in a direction perpendicular to an axis of the sheath.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: May 31, 2011
    Assignees: Ebara Corporation, Okazaki Manufacturing Company
    Inventors: Saho Kimura, Takashi Sugaya, Manabu Kazaoka, Yuuya Hashiguchi
  • Publication number: 20110119014
    Abstract: A method and a system for determining the rotor temperature of an electric motor of a hybrid vehicle. In a method for determining the rotor temperature of an electric motor of a hybrid vehicle in which it is possible to reliably determine the rotor temperature using simple means, the rotor temperature of the electric motor being ascertained by measuring an operating parameter of the electric motor during operation of the hybrid vehicle.
    Type: Application
    Filed: April 21, 2009
    Publication date: May 19, 2011
    Inventors: Beqir Pushkolli, Stefan Blind, Klaus Rechberger
  • Patent number: 7944666
    Abstract: A hot plug electronic device with high using safety is provided. The hot plug electronic device includes an operation circuit, a voltage regulator and an over-thermal protection device. The operation circuit is used for communicating with an external host. The voltage regulator is coupled to the operation circuit for supplying power to the operation circuit. The over-thermal protection device is coupled to the voltage regulator for sensing the present temperature of the hot plug electronic device, and accordingly controlling the voltage regulator to normally supply/stop supplying the power to the operation circuit.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: May 17, 2011
    Assignee: Phison Electronics Corp.
    Inventors: Yu-Tong Lin, Hsiang-Hsiung Yu
  • Patent number: 7931401
    Abstract: A temperature sensor including a housing and a temperature sensing element at least partially disposed in the housing. A particulate media, which may include a blend of differently sized particles, is disposed in the housing and at least partially surrounds the temperature sensing element. The particulate media may entrain oxygen to avoid a reducing atmosphere in said housing.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: April 26, 2011
    Assignee: Stoneridge Control Devices, Inc.
    Inventors: Ronald N. Landis, Robert J. Sparks, Jeffrey T. Norris
  • Publication number: 20110090937
    Abstract: A remote, noncontact temperature determination method and apparatus is provided, which is operable to determine the temperature of a conducting member forming a part of or in operative thermal communication with an object of interest. The method comprises the steps of first inducing a closed vortex eddy current (28) in a conducting member (16, 38, 44) by subjecting the member (16, 38, 44) to a magnetic field, such that the corresponding eddy current magnitude changes exponentially over time. A characteristic time constant of the exponential current magnitude changes is then determined, and this is used to calculate the temperature of the object. The apparatus (24) includes a field transmitting coil (14) coupled with a waveform generator (12) for inducing the eddy current (28), and a field receiving coil assembly (18) which detects the corresponding magnetic field induced by the eddy current (28).
    Type: Application
    Filed: October 14, 2010
    Publication date: April 21, 2011
    Applicant: TSI Technologies LLC
    Inventors: Vladimir MALYSHEV, Evgeni Sorkine
  • 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: 7909508
    Abstract: A sensor assembly is provided for a power bus. The power bus exhibits a number of characteristics, such as a temperature. The sensor assembly includes an enclosure having a housing and a base. At least one sensor such as, for example, a temperature sensor, is housed within the enclosure. The sensor (e.g., temperature sensor) senses a corresponding one of the number of characteristics (e.g., temperature) of the power bus. A power supply is housed within the enclosure, and cooperates with the power bus to provide electrical power to the sensor. An elongated fastener fastens the enclosure to the power bus. The base of the enclosure is adjustable with respect to the housing of the enclosure in order to secure the power bus between the housing and the base. The elongated fastener extends around the enclosure and the power bus in order to secure the enclosure to the power bus.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: March 22, 2011
    Assignee: Eaton Corporation
    Inventors: Lloyd A. Maloney, Deborah K. Mort
  • Publication number: 20110051776
    Abstract: The invention pertains to flexible devices used for zero-heat-flux, deep tissue temperature measurement, especially to disposable temperature measurement devices. Such a device is constituted of a flexible substrate with a plurality of contiguous sections. An electrical circuit is disposed on a side of the substrate. The electrical circuit includes first and second thermal sensors disposed, respectively, on first and second substrate sections. A heater trace is disposed on the first substrate section with the first thermal sensor. The first and second sections are folded together to position the first and second thermal sensors therebetween, and a flexible insulator disposed between the folded-together first and second sections maintains the first and second thermal sensors in a spaced-apart relationship.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Applicant: Arizant Healthcare Inc.
    Inventors: Mark T. Bieberich, Clifford T. Jue, Jonathan I. Kaplan, Brian J. Mason, Paul J. Silberschatz, Albert P. Van Duren
  • Publication number: 20110051775
    Abstract: The present invention, in one embodiment, provides a method of measuring pressure or temperature using a sensor including a sensor element composed of a plurality of carbon nanotubes. In one example, the resistance of the plurality of carbon nanotubes is measured in response to the application of temperature or pressure. The changes in resistance are then recorded and correlated to temperature or pressure. In one embodiment, the present invention provides for independent measurement of pressure or temperature using the sensors disclosed herein.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 3, 2011
    Applicant: UT-BATTELLE, LLC
    Inventors: Ilia N. Ivanov, David Bruce Geohegan
  • Publication number: 20110054822
    Abstract: An apparatus and a method monitor condition of a temperature measurement point in an industrial process system by sensing vibration frequency of a thermowell positioned in a process fluid flow passage and providing a diagnostic output based upon the vibration frequency sensed. The apparatus includes a temperature measurement point having a thermowell, a vibration sensor, a temperature sensor, and a transmitter. The vibration sensor is fixedly attached to the thermowell, and the temperature sensor is positioned inside a bore cavity of the thermowell. The transmitter is electrically connected to both the temperature sensor and the vibration sensor.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 3, 2011
    Applicant: Rosemount Inc.
    Inventors: Dirk Willy Bauschke, Lara Ivey Kauchak, Duyen Mong-Thi Pham
  • Patent number: 7891865
    Abstract: Disclosed is a design structure for an improved on-chip temperature sensing circuit, based on bolometry, which provides self calibration of the on-chip temperature sensors for ideality and an associated method of sensing temperature at a specific on-chip location. The circuit comprises a temperature sensor, an identical reference sensor with a thermally coupled heater and a comparator. The comparator is adapted to receive and compare the outputs from both the temperature and reference sensors and to drive the heater with current until the outputs match. Based on the current forced into the heater, the temperature rise of the reference sensor can be calculated, which in this state, is equal to that of the temperature sensor.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 22, 2011
    Assignee: International Business Machines Corporation
    Inventors: William F. Clark, Jr., Edward J. Nowak
  • Publication number: 20110038395
    Abstract: One-time, single-use sensor elements (22, 46) are provided for detecting the occurrence of predetermined conditions such as temperature and elapsed time-temperature. The sensor elements (22, 46) preferably comprise elongated, glass-coated, metal alloy, amorphous or nanocrystalline microwires (30, 48), which can be placed in a position to detect the predetermined condition of interest. An alternating magnetic field detector (28) may be used to continuously or periodically interrogate the sensor elements (22, 46) to determine if the predetermined condition has occurred. In one aspect of the invention, the microwires (30, 48) experience a change in configuration upon the occurrence of the predetermined condition, and have correspondingly different induced remagnetization responses.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 17, 2011
    Applicant: TSI TECHNOLOGIES LLC
    Inventors: Evgeni Sorkine, Brian L. Clothier
  • Publication number: 20110025666
    Abstract: A display driver device and a temperature sensor of a display driver device are provided. The temperature sensor includes a proportional voltage generating unit, and a sensing signal output unit. The proportional voltage generating unit generates a first proportional voltage, which is proportional to a temperature, and a second proportional voltage, which is inversely proportional to the temperature. The sensing signal output unit outputs a sensing signal by amplifying a voltage difference between the first and second proportional voltages. A sensing signal may vary linearly according to the temperature.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 3, 2011
    Inventors: Seung-Hwan Baek, Ji-Yong Jeong
  • Publication number: 20110002358
    Abstract: An apparatus, in one embodiment, can include a configuration including a plurality of heat generation devices. The apparatus also includes a plurality of thermal sensors respectively, operably connected to each of the plurality of heat generation devices, wherein each thermal sensor of the plurality of thermal sensors includes a respective output terminal configured to provide a voltage representative of the temperature of the respective heat generation device. The apparatus further includes an output circuit configured to output the highest temperature information among the heat generation devices. The output terminals of the plurality of thermal sensors are tied together. A corresponding method is also discussed.
    Type: Application
    Filed: October 6, 2009
    Publication date: January 6, 2011
    Applicant: Renesas Technology America, Inc.
    Inventors: Tetsuo Sato, Ryotaro Kudo
  • Publication number: 20100328090
    Abstract: An electronic thermometer includes a hollow probe provided at its longitudinal tip with a temperature measuring unit having a temperature sensor for sensing a temperature, electrodes neighboring to the temperature sensor and arranged in the hollow of the probe, and a determining unit for determining whether temperature measuring unit is in appropriate contact with a measurement target portion of a user or not, based on a change in electrostatic capacity sensed using the electrodes.
    Type: Application
    Filed: February 17, 2009
    Publication date: December 30, 2010
    Applicant: OMRON HEALTHCARE CO., LTD.
    Inventors: Hiroshi Hiramatsu, Yasuo Fujita, Yoshihito Nakanishi, Yoshihide Onishi, Daisuke Ishihara, Atsuko Fukui, Masaki Tomioka, Katsuyoshi Morita
  • Patent number: 7857506
    Abstract: Disposable, pre-sterilized, and pre-calibrated, pre-validated conductivity sensors are provided. These sensors are designed to store sensor-specific information, such as calibration and production information, in a non-volatile memory chip on the sensor. The sensors are calibrated using 0.100 molar potassium chloride (KCl) solutions at 25 degrees Celsius. These sensors may be utilize with in-line systems, closed fluid circuits, bioprocessing systems, or systems which require an aseptic environment while avoiding or reducing cleaning procedures and quality assurance variances.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: December 28, 2010
    Assignee: SenCal LLC
    Inventors: Karl G. Schick, David Uhen
  • Publication number: 20100322283
    Abstract: The temperature sensors (26,64,96) preferably include a plurality of individual, magnetically susceptible temperature sensor elements (28-34,66,92), as well as optional magnetic field-responsive data elements (38,40,20) adapted for attachment to object (44) or to a substrate (82) in turn attached to object (44). The temperature sensor elements (28-34,66,92) preferably have magnetic bodies (22,70) exhibiting a re-magnetization response under the influence of an applied alternating magnetic field, which is different below and above a set point temperature, normally the Curie temperature of the magnetic body (22) or an adjacent sheath (74,94).
    Type: Application
    Filed: June 22, 2010
    Publication date: December 23, 2010
    Applicant: TSI TECHNOLOGIES LLC
    Inventors: Brian L. Clothier, Edwin T. Abbett
  • Patent number: 7854550
    Abstract: A thermometer includes an illuminated display, which may act as an intelligent indicator of the change and level of temperature. The thermometer includes memory unit accommodating multiple users and their past records respectively. When a new temperature reading is obtained, the thermometer compares the new temperature against the immediate preceding record of the same user. The thermometer further includes a display module indicating the change of temperature reading and the fever status of the user.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: December 21, 2010
    Assignee: Aviton Care Limited
    Inventors: Chung Man Chan, Ching Ching Cheung, Ka Lun Fan, Hung Keung Tse
  • Patent number: 7856341
    Abstract: Sensors are located on first and second regions of a heat sink, with a portion of the heat sink interposed between the first and second region sensors. The heat sink is connected to a component by an attachment that conducts heat from the component to the heat sink, and a third sensor is located on the component or the attachment with a portion of the attachment disposed between the third sensor and the first and second heat sink region sensors. Temperature readings from the sensors are compared to identify a failing one of the heat sink, the attachment portion, and the component with respect to heat conduction, which includes identifying the interposed heat sink portion as failing in response to a divergence between temperature inputs from the first and second heat sink region sensors. Rate-of-rise temperature readings may also be observed and compared, including to historical values.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: December 21, 2010
    Assignee: International Business Machines Corporation
    Inventors: Brian L. Carlson, Bruce J. Chamberlin, Mark K. Hoffmeyer, Ahmad D. Katnani, Matthew S. Kelly, Gregory S. Killinger, Eric V. Kline, Wayne J. Rothschild, Jeffrey A. Taylor
  • Patent number: 7854548
    Abstract: A total air temperature sensor includes a probe secured to a first side of a vehicle surface. The probe includes an air inlet and a temperature sensing element. Air flows into the air inlet and passes by the temperature sensing element. The temperature sensing element produces a temperature sensing element electrical signal as a function of a temperature of the air. The total air temperature sensor also includes an electronics package secured to a second side of the vehicle surface. Electronics in the electronics package receive the temperature sensing element electrical signal from the temperature sensing element and determine a total air temperature as a function of the temperature sensing element electrical signal.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: December 21, 2010
    Assignee: Rosemount Aerospace Inc.
    Inventors: Mathew L. Sandnas, Glenn Austin, Mark J. Buenz, Daniel Teigen, Wade Williams
  • Publication number: 20100304977
    Abstract: Methods for forming sensors using transition edge sensors (TES) and sensors therefrom are described. The method includes forming a plurality of sensor arrays includes at least one TES device. The TES device includes a TES device body, a first superconducting lead contacting a first portion of the TES device body, and a second superconducting lead contacting of a second portion of the TES device body, where the first and second superconducting leads separated on the TES device body by a lead spacing. The lead spacing can be selected to be different for at least two of the plurality of sensor arrays. The method also includes determining a transition temperature for each of the plurality of sensor arrays and generating a signal responsive to detecting a change in the electrical characteristics of one of the plurality of sensor arrays meeting a transition temperature criterion.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 2, 2010
    Inventor: JOHN E. SADLEIR
  • Patent number: 7841769
    Abstract: An internal combustion engine includes an exhaust gas feedstream flowing past a gas sensing device disposed therein. The gas sensor includes an integrated electrical heating element which provides a resistance indicative of its temperature. An unknown input observer is used to determine the exhaust gas feedstream temperature based on the heating element temperature.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 30, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Qi Ma, Julian R. Verdejo, Nicholas John Kalweit
  • Publication number: 20100290503
    Abstract: A passive wireless sensor is disclosed. The sensor has at least a measurand sensitive member and an electromagnetically resonant member positioned proximate to each other. The resonant member comprises a preselected resonance frequency, such that it scatters at least a portion of an interrogating signal as a scattered signal proximate to its resonance frequency, and the measurand sensitive member alters the scattered signal as a function of the measurand to change the shape of the scattered signal. The reactive field of the sensor is kept within the sensor to minimize environment interference and to maximize its signal strength. Almost bond-free packaging mitigates problems with delamination or internal stresses due to differing coefficients of thermal expansion.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: Prime Photonics, LC
    Inventors: Raymond Charles Rumpf, JR., John Moore Coggin, Stephen Hamilton Poland
  • Patent number: 7828479
    Abstract: A three-terminal, dual-diode system is compatible with both fully differential remote and single-ended remote temperature measurement systems. Fully differential remote temperature sensor systems offer better noise immunity and can perform faster conversions with less sensitivity to series resistance than single-ended systems. The two diode system can be used with either fully differential or single-ended temperature measurement systems, which can be used when upgrading from a single-ended architecture to a fully differential architecture, and which can provide backwards compatibility to single-ended architectures for users of fully differential architectures. The simultaneous forwards and backwards compatibilities reduces development risk associated with switching from a proven architecture (e.g., single-ended) to a newer, less-proven, architecture (e.g., fully differential).
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: November 9, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Mehmet Aslan, Richard Henderson, Chung Wai Benedict Ng
  • Publication number: 20100276501
    Abstract: A temperature measuring method using a temperature probe in which a temperature-sensitive magnetic substance having an arbitrary Curie point is arranged in a portion to be measured. A magnetic field is generated from a magnetic field generation source disposed at a position away from the portion to be measured. A change of the magnetic flux vector of the magnetic field depending on the temperature of the temperature-sensitive magnetic substance is detected by a magnetic sensor to measure the temperature of the portion to be measured, thereby the temperature of the portion to be measured can be wirelessly measured from the position away from the portion to be measured and the reduction in size can be easy.
    Type: Application
    Filed: January 9, 2009
    Publication date: November 4, 2010
    Applicant: AKITA UNIVERSITY
    Inventors: Noboru Yoshimura, Kazutaka Mitobe, Jun-ichi Ogawa, Hajime Saito
  • Patent number: 7824102
    Abstract: A thermometer quick linkage apparatus comprises an elastic member, a button, a probe, and a chamber having one end provided with an opening for receiving the end portion of the probe, and the other end also provided with an opening for receiving the button. Within the chamber, one end of the elastic member connects with the button, and the other end thereof connects with the probe. The elastic member is configured such that, when the button is pressed to compress the elastic member to a certain degree, the end portion of the button comes into contact with the end portion of the probe, and when the button is pressed further down, the probe is pushed away from the chamber. The apparatus is simplified in structure, and allows quick replacement of the probe jacket, and therefore is cost-efficient.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: November 2, 2010
    Assignee: Shenzhen Mindray Bio-Medical Electronics, Inc.
    Inventors: Xiaojian Ma, Peitao Chen