Abstract: An electrical seat heater of a vehicle has a heating resistor which is connected to a seat ground cable has a temperature-dependent sensor resistor in the vehicle seat. A control unit is outside the vehicle seat is connected to a control unit ground remotely from the vehicle seat. The voltage measurement for determining the temperature is carried out with the seat heater briefly disconnected from the supply voltage. The heating resistor is connected to the supply voltage via a series circuit including the sensor resistor and a further resistor or to the supply voltage via a power path. The control unit measures the voltage drop at the sensor resistor by a measuring signal cable. The control unit measures the potential difference between the seat ground cable and the control unit ground, which is used to correct the seat temperature.

Abstract: A calibrator is provided for calibrating devices with a temperature function, e.g. thermometers or thermal switches. The calibrating device includes a calibrator block with a cavity for the purpose of receiving a receiving body for at least one temperature measurement device to be calibrated. The calibrator block features a material with thermally insulating properties and the receiving body features a material with thermally conductive properties. At least one heating device is embedded in the calibrator block in the area of the cavity.

Abstract: A calibrator for calibrating devices with a temperature function, e.g. thermometers or thermal switches has an input and display unit. The calibrator has a capacitive touchscreen with the input and display unit.

Abstract: There is provided a portable electronic device with one or more integrated ambient sensors, such as temperature or humidity sensors, for measuring an ambient parameter, a display for displaying the parameter or related information and shared by other elements of the device, and a system receiving input relating to internal or external states of the device and generating in response to the input an accuracy measure of the ambient parameter measurement.

Abstract: Methods and systems accurately determine an analyte concentration in a fluid sample. In an example embodiment, a receiving port receives a test sensor. The test sensor includes a fluid-receiving area for receiving a fluid sample. The fluid-receiving area contains a reagent that produces a measurable reaction with an analyte in the fluid sample. The test sensor has a test-sensor temperature and the reagent has a reagent temperature. A measurement system measures the reaction between the reagent and the analyte. A temperature-measuring system measures the test sensor temperature when the test sensor is received into the receiving port. A concentration of the analyte in the fluid sample is determined according to the measurement of the reaction and the measurement of the test sensor temperature. A diagnostic system determines an accuracy of the temperature-measuring system. The calculation of the analyte concentration may be adjusted according to the accuracy of temperature-measuring system.

Abstract: A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.

Abstract: There is provided an optical fiber temperature distribution measuring device which measures a temperature distribution along an optical fiber (3) using backward Raman scattering light generated in the optical fiber. The device includes: a reference temperature thermometer (11) disposed in the vicinity of the optical fiber so as to measure a reference temperature (T1, T2) of the optical fiber; an arithmetic controller (7) that calculates a temperature (T) of the optical fiber based on the backward Raman scattering light; and a temperature corrector (12) that corrects the calculated temperature (T) based on a correction formula containing the reference temperature as a parameter.

Abstract: A calibrator for calibrating a compatible heat transfer meter comprises a temperature controlled reference thermowell and a reference temperature sensor. The reference thermowell is similar in dimensions to thermowells usable for measuring inlet and outlet temperatures of a heat exchanger so that the reference temperature sensor is selectively insertable into any of the thermowells. The calibrator also comprises temperature measurement circuitry operable to generate a temperature reading from an output of the reference temperature sensor; and control circuitry operable to control the temperature of the reference thermowell.

Abstract: In a method for determining a state of an apparatus, detected temperatures are received from a plurality of sensors and are compared to at least one preset condition. The state of the apparatus is determined based upon the comparison.

Abstract: A sensor failure detection device includes a storage, a predictor, a calculator and a detector. The storage stores temperature information of individual sensors. The temperature information includes measured values of temperatures. The measured values of temperatures are measured by a plurality of sensors. The predictor predicts a temperature distribution by performing a thermal fluid simulation, on the basis of the temperature information received from a remaining sensor. The remaining sensor is a sensor of the plurality of sensors other than the test target sensor. The calculator calculates a difference value between a temperature at a position of the test target sensor in the temperature distribution and a temperature measured by the test target sensor. The detector detects that the difference value is higher than a predetermined value.

Abstract: A diverse and redundant resistance temperature detector (“D&R RTD”) is provided. The D&R RTD is utilized in obtaining temperature readings in environments, such as fluids and gasses, by measuring electrical characteristics of the D&R RTD that are influenced by the temperature. Furthermore, the D&R RTD's are arranged such that a plurality of measurements can be obtained, which provides sufficient diversity and redundancy of the measurements for enhanced diagnostics to be performed, such as optimization for fast dynamic response, calibration stability, in-situ response time testability, and in-situ calibration testability.

Abstract: A temperature probe for determining a calibrated temperature value is described. The temperature probe includes a sensing element, a memory, and a probe communication interface. The sensing element provides a measured value corresponding to a temperature of the temperature probe. The memory stores calibration data from a calibration procedure performed on the temperature probe. The probe communication interface outputs the measured value and the calibration data for determination of the calibrated temperature value.

Abstract: A warpage test system uses a calibration block to calibrate the warpage test system over a temperature profile. The calibration block includes a first metal block bonded to a second metal block. The first metal block includes a first metal and a second different metal. The first metal block includes a CTE different than a CTE of the second metal block. The calibration block is disposed in the warpage test system. A warpage of the calibration block is measured over a temperature profile ranging from 28° C. to 260° C. A deviation between the measured warpage of the calibration block and a known thermal expansion of the calibration block over the temperature profile is recorded. The warpage measurement in a semiconductor package is compensated by the deviation between the measured warpage of the calibration block and the known thermal expansion or warpage of the calibration block over the temperature profile.

Abstract: This document discusses, among other things, a temperature and power supply calibration system configured to compensate for temperature and supply voltage variation in MEMS or other circuits using representations of positive and negative supply voltages and first and second base-emitter voltages, wherein the second base-emitter voltage is a scaled representation of the first base-emitter voltage.

Abstract: A method is provided for calibrating a thermal conductivity sensor in a first medium A from measurements in a second medium B. The method includes maintaining the sensor at a substantially fixed temperature T1, and measuring a heat flux IB(T1) from the thermal element in the second medium B. A corresponding heat flux IA(T1) in the first medium A is calculated using known thermal conductivities of the first medium A and the second medium B.

Abstract: An electronic system, or its battery thermal management system, determines a thermal state of a battery used in the electronic system. A temperature at a position proximate the battery's cell is sensed during operation of the electronic system to produce a sensed value. Additionally, a temperature offset value is determined based on an aging factor for the battery. The sensed value is then adjusted based on the offset value to produce an adjusted value representative of the thermal state of the battery. According to one embodiment, a relationship between temperature offset value and battery aging factor is prestored in a memory of the electronic system. In such a case, the offset value may be retrieved from memory periodically or in response to a trigger event based on a determined aging factor. According to another embodiment, the offset value may be computed in real time based on a determined aging factor.

Abstract: The present invention pertains to a method suitable for analysing the temperature control of a device which is supposed to establish a defined temperature in a micro-environment, said method comprising a first Optical Temperature Verification step which comprises a) providing one or more thermochromatic liquid crystals in a micro-environment, wherein each thermochromatic liquid crystal has a specific event temperature, b) providing one or more temperature dependent luminophores in a micro-environment, c) varying the temperature in the micro-environments and irradiating the micro-environments with light, d) recording the luminescence of the one or more temperature dependent luminophores when the event temperature of the one or more thermochromatic liquid crystals is reached in the micro-environment and wherein said method preferably comprises a second Optical Temperature Verification step, which comprises the following a) providing one or more temperature dependent luminophores that were used in the First

Abstract: A method for calibrating a superheat sensor (5) for a refrigeration system is provided. The method comprises the following steps. Increasing an amount of liquid refrigerant in the evaporator (1), e.g. by increasing an opening degree of the expansion valve (3). Monitoring one or more parameters, e.g. the temperature of refrigerant leaving the evaporator (1), said parameters reflecting a superheat value of the refrigerant. Allowing the value of each of the parameter(s) to decrease. When the value(s) of the monitored parameter(s) reaches a substantially constant level, defining the superheat value corresponding to the constant level to be SH=0. The superheat sensor (5) is then calibrated in accordance with the defined SH=0 level. When the parameter(s) reaches the substantially constant level it is an indication that liquid refrigerant is allowed to pass through the evaporator (1), and thereby that the superheat of the refrigerant leaving the evaporator (1) is zero.

Abstract: The invention relates to a device (100) for calibrating the temperature of a fiber-optic temperature sensor, with which an optical fiber (10) of a fiber-optic temperature sensor is to be provided. The device (100) comprises a device body (101) having a passage (109) through which the optical fiber (10) is to pass, and a means for transferring heat energy. The device (100) further comprises at least one portion (160a), referred to as a first fixed point, which is made from a first material having at least a first predefined temperature at which the state thereof changes. The first fixed point (160a) is thermally connected to the optical fiber (10) when the optical fiber (10) is provided with the device (100). The heat-transferring means is arranged in the device body (101) such that, during the actuation thereof, the heat-transferring means exchanges heat energy with the first fixed point (160a) so as to cause a change in the state thereof at the first predefined temperature.

Abstract: An optical measurement instrument includes one or more temperature sensors (122) arranged to measure sample well specific temperatures from sample wells (111-117) arranged to store samples (103-109) to be optically measured. A processing device (121) of the optical measurement instrument is arranged to correct, using a pre-determined mathematical rule, measurement results obtained by the optical measurements on the basis of the measured sample well specific temperatures. Hence, the adverse effect caused by temperature differences between different samples on the accuracy of the temperature correction of the measurement results is mitigated.

Abstract: System and method for correcting the potential errors occurring in a fiber optic temperature measurement system are disclosed. In one respect, a dual light sources configuration is provided. The primary light source may illuminate a sensing fiber, and an Anti-Stokes band may be detected. The secondary light source may illuminate a sensing fiber, and a Rayleigh band may be detected, where the Rayleigh band is substantially wide enough to cover the Anti-Stokes band of the primary light source. A ratio between these Anti-Stokes and the Rayleigh bands may be used to measure the temperature and undesired errors due to the perturbations falling on the sensing fiber is continuously corrected.

Abstract: A method for correcting offset drift effects of a thermal measurement device (10) which comprises at least one temperature sensor (15a, 15b) arranged at a defined distance from a heating device (12) for a fluid to be measured, for measuring at least one measurement variable describing the temperature and/or temperature profile during operation of the heating device (12), in which a reference measured value (35) is measured at a reference time in a first measurement of the measurement variable with the heating device (12) turned off, in which a drift measured value (36) is measured at at least one later time in a second measurement of the measurement variable with the heating device (12) turned off, and in which a drift correction is carried out during the measurement by using the heating device (12) on the basis of a difference between the drift measured value (36) and the reference measured value (35).

Abstract: A calibration device, capable of calibrating a gain of a radiometer, includes an actuator and a micro-electromechanical-system (MEMS) unit. The actuator receives a calibration signal outputted from a control unit. The MEMS unit is coupled to the actuator, in which the actuator enables the MEMS unit to shield an antenna of the radiometer according to the calibration signal, such that the radiometer generates an environmental signal according to an equivalent radiant temperature received from the MEMS unit, and the control unit calibrates the gain of the radiometer according to the environmental signal.

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.

Abstract: A calibration apparatus for temperature probes comprising an elongate calibration chamber (1) with an opening (2) for receiving an insert (3) that has passages (4) for receiving temperature probes (6), and wherein the chamber (1) has several heat energy elements (-11) that are controlled by temperature probes (12-14). In the insert as such one or more external probes (7) are provided, each of which has one or more temperature sensors to the effect that at least two sensors (19, 20 or 15, 17) are provided at respective dissimilar distances to an end of the insert (3). The latter sensors are connected to electronic regulation (20, 23) and measurement units (21, 24) for regulating the supply of power to the heat energy elements.

Abstract: A zero-heat-flux DTT measurement device is constituted of a flexible substrate supporting an electrical circuit including a heater trace defining a heater, thermal sensors, and a thermal sensor calibration circuit.

Abstract: The invention relates to systems and methods for calibrating and using resistance temperature detectors. In one embodiment, the system includes a calibration circuit comprising a resistance temperature detector in a bridge circuit with at least one potentiometer, and a programmable gain amplifier coupled to the bridge circuit. Embodiments of the invention further comprise methods for calibrating the bridge circuit and the programmable gain amplifier for use with the resistance temperature detector and methods for determining the self heating voltage of the bridge circuit.

Abstract: A method for re-calibrating installed downhole sensors used in hydrocarbon wells by the application of a calibration string inserted in the wells and deployed in close proximity to the installed downhole sensor.

Abstract: A self-calibrating, wide-range temperature sensor includes a current reference, impervious to process and voltage, with the current reference mirrored into two oppositely-sized bipolar transistors or diodes. Duplicate current sources are used with a ratio of geometries between them, such that the larger current biases the smaller bipolar transistor (less cross-sectional area) and the smaller current source biases the larger bipolar transistor (higher cross-sectional area). The current source in conjunction with the differential temperature sensing provides inherent calibration without drift while the differential sensing, from the ratio of geometries in the current paths also increases sensitivity.

Abstract: Systems and methods for an auto-ranging temperature sensor are provided. In at least one embodiment, a system for sensing and measuring temperature comprises at least one analog signal amplifier that generates an amplified analog signal output based on an analog signal from at least one of a biased thermistor circuit and a calibration circuit and a digital to analog converter that generates an analog offset signal as an input to the at least one analog signal amplifier, wherein the analog offset signal shifts the amplified analog signal within an analog to digital converter input operating range when the amplified analog signal is equal to or greater than a limit of the analog to digital converter input operating range, wherein the analog offset signal is determined based on the magnitude of the amplified analog signal.

Abstract: A calibration body (140) for calibration of a temperature sensor (170). The calibration body comprises a volume (142) capable of containing a calibration fluid with a predetermined temperature and an opening (160) for receiving the temperature sensor. The opening has a flexible opening wall (131) which delimits the sensor (170) from the volume and is capable of tightly engaging the sensor (170). The opening wall (131) comprises a non-elastic wear resistant region (231) facing the opening. The non-elastic wear region (231) is connected to a path compensator (232) capable of adjusting a length of the opening wall (131) with an amount corresponding to the path around the temperature sensor (170) in the non-elastic region (231). The non-elastic region (231) can comprise a reinforced sheet material and/or a coating. An apparatus comprising the calibration body (140) and a separate pressure body (120) is also disclosed.

Abstract: A thermostat diagnostic apparatus is provided with a cooling medium temperature sensor, an engine operating condition sensor and a malfunction diagnosing device. The malfunction diagnosing device is configured to diagnose a stuck-open malfunction of a thermostat provided in a coolant flow passage of an engine installed in a mobile body based on a comparison of a real cooling medium temperature detected by the cooling medium temperature sensor and an estimated cooling medium temperature estimated based on an engine operating condition of the engine detected by the engine operating condition sensor. The malfunction diagnosing device determines that the thermostat is stuck in an open state upon determining that either the estimated cooling medium temperature or the real cooling medium temperature exceeds a prescribed reference value during a period in which an increased heat exchange rate condition of a radiator is satisfied continuously.

Abstract: Certain exemplary embodiments can provide a system, which can comprise a thermocouple input module. The thermocouple input module can be adapted to determine one or more calibration factors. The thermocouple input module can be adapted to store the calibration factors. The thermocouple input module can be adapted to apply the calibration factors to an incoming thermocouple voltage value to obtain an adjusted thermocouple voltage value.

Abstract: A temperature measuring apparatus includes a light source, a first splitter, a second splitter, a reference beam reflector, an optical path length adjuster, a reference beam transmitting member, a first to an nth measuring beam transmitting member and a photodetector. The temperature measuring apparatus further includes an attenuator that attenuates the reference beam reflected from the reference beam reflector to thereby make an intensity thereof closer to an intensity of the measurement beam reflected from the temperature measurement object.

Abstract: A method for calibrating distributed temperature sensing (DTS) systems is disclosed. The method includes: receiving temperature data associated with one or more locations along a length of an optical fiber; calculating a set of unique calibration coefficients specific to each of the one or more locations along the fiber length; and applying the set of calibration coefficients specific to each of the one or more locations along the fiber length to the temperature data for calibrated correction thereof. Also disclosed is a system for calibrating DTS data and a wellbore for providing calibrated DTS data.

Abstract: The present disclosure is directed to a temperature detector for detecting a temperature of a component. The temperature detector may receive a first signal indicative of the temperature of the component, with the first signal being received from a first type of temperature sensor. The temperature detector may further receive a second signal indicative of the temperature of the component, with the second signal being received from a second type of temperature sensor different from the first type of temperature sensor. The temperature detector may combine the first and second signals to generate an output indicative of the temperature of the component.

Abstract: A temperature sensor peripheral generates an output voltage that is proportional to temperature, whose temperature coefficient can be adjusted to any desired value, whose temperature coefficient can be either positive or negative, whose room temperature voltage can be adjusted to any desired value, and whose temperature coefficient and room temperature voltage adjustments are independent from one another.

Abstract: A rationality diagnosis method and a rationality diagnosis apparatus for a sensor inside a tank are provided. The rationality diagnosis method and the rationality diagnosis apparatus can accurately and easily perform a diagnosis to determine whether rationality of all sensors is maintained. The rationality diagnosis method for the sensor inside the tank performs a rationality diagnosis of a concentration sensor, a liquid level sensor and a temperature sensor that are provided inside the tank that stores liquid. The rationality diagnosis method is characterized by diagnosing whether the rationality is lost in one of the concentration sensor, the liquid level sensor and the temperature sensor by determining whether there exists any contradiction between respective sensor values of the concentration sensor, the liquid level sensor and the temperature sensor.

Abstract: A method includes determining a relationship between indirect thermal data for a processor and a measured temperature associated with the processor, during a calibration process, obtaining the indirect thermal data for the processor during actual operation of the processor, and determining an actual significant temperature associated with the processor during the actual operation using the indirect thermal data for the processor during actual operation of the processor and the relationship.

Abstract: An apparatus for measuring environmental parameters includes: an optical fiber sensor configured to be disposed along a path in an environment to be measured, the path of the optical fiber sensor defining a longitudinal axis; and at least one section of the optical fiber sensor configured so that an entire length of the at least one section is exposed to an at least substantially homogeneous environmental parameter, at least part of the at least one section extending in a direction having a radial component relative to the longitudinal axis.

Abstract: A method including obtaining calibration data for at least one sub-component in a heat transfer assembly, wherein the calibration data comprises at least one indication of coolant flow rate through the sub-component for a given surface temperature delta of the sub-component and a given heat load into said sub-component, determining a measured heat load into the sub-component, determining a measured surface temperature delta of the sub-component, and determining a coolant flow distribution in a first flow path comprising the sub-component from the calibration data according to the measured heat load and the measured surface temperature delta of the sub-component.

Abstract: A method of calibrating a thermal sensor includes setting a wafer to a control temperature. The wafer includes the thermal sensor and other chip logic. The method also includes applying power exclusively to a thermal sensor circuit, calibrating the thermal sensor, and storing a calibration result. The method also includes retrieving the calibration result upon application of power to the other chip logic.

Abstract: Disclosed herein is an optical image stabilizer, including: a substrate; a table disposed over the substrate, while levitating, to be movable on the substrate and having an image sensor mounted on the upper end of the substrate; cantilever arms disposed over the substrate, while levitating, and connected to the table to move the table; anchors fixing one ends of the cantilever arms onto the substrate; and electrodes applying voltage for moving the cantilever arm.

Abstract: A calibrated airflow monitoring method is provided. The monitoring method which includes: providing an airflow sensor positioned within an electronic system to be at least partially air-cooled, the airflow sensor including at least one temperature sensor and a heater associated with one temperature sensor of the at least one temperature sensor; calibrating, with the airflow sensor positioned within the electronic system, a duty cycle for use in powering the heater associated with the one temperature sensor; and providing a controller configured to use the calibrated duty cycle in powering the heater of the temperature sensor during airflow monitoring of the electronic system, and to obtain a hot temperature (Thot) reading from the one temperature sensor having the associated heater, and to determine, based at least in part on the hot temperature (Thot) reading, whether to issue an airflow warning.

Abstract: A precision temperature sensing system includes a heater and a sensing element disposed on a semiconductor substrate. A power source drives the heater on a periodic basis according to a received clock signal. The sensing element senses the heat emitted by the heater and diffused through the semiconductor substrate. Processing circuitry coupled to the sensing element adjusts a phase of the periodic heater driving signal based on the heat sensed by the sensing element. The processing circuitry determines a temperature based on a thermal diffusivity (TD) of the semiconductor substrate, the adjusted value of the phase, and a known distance between the heater and the sensing element. A second temperature sensor can be disposed on the same substrate as the precision temperature sensing system, and calibrated based on temperature measurements obtained while applying a reference frequency signal to the precision sensing system.

Abstract: A method of calibrating a heater system for heating a surface of a structure, the heater system including a heater element, a temperature sensor proximate the heater element for outputting a signal indicative of the temperature of the heater element, and a controller for controlling the supply of power to the heater element in dependence on the signal to maintain the temperature of the heater element at a first substantially constant temperature. The method comprises: immersing the structure in a fluid for maintaining the surface of the structure at a second substantially constant temperature; supplying an amount of power to the heater element; receiving the signal from the temperature sensor and determining a temperature at the temperature sensor; and determining a setpoint temperature for controlling the heater element in dependence on the signal and the second substantially constant temperature.

Abstract: An imaging thermographic measuring system to measure the thermal output (Qout) at a target object, such as a building wall, building facade, or the like, comprising a measuring station provided for the arrangement distant from the object with an electric imaging device to record a thermographic thermal image, with a temperature distribution to be allocated thereto, and with a temperature sensor distant from the object to measure a temperature (Tref) distant from the object; at least one thermal transition sensor provided to be arrange close to the object, a transmission arrangement to transmit values between at least one thermal transition sensor and the measuring station, with the thermal transition sensor being embodied to predetermine the test values to determine a thermal transition coefficient (h).

Abstract: A temperature detecting circuit includes a first thermistor, a second thermistor, a first pull-up resistor, and a second pull-up resistor. The first thermistor has a first positive-side terminal. The second thermistor has a second positive-side terminal. The first thermistor and the second thermistor have different detection sensitivities to temperature. The first pull-up resistor is connected between the first thermistor and a power supply. The second pull-up resistor is connected between the second thermistor and the power supply. The first pull-up resistor and the second pull-up resistor have different resistances.

Abstract: A time-domain temperature sensing system for supporting a single-point calibration is disclosed. Under a single calibration temperature, the digital output of the temperature sensing system is adjusted by a calibration circuit to a specific value, and the generated calibration parameter thereof can be stored in the same chip of the temperature sensing system or in an off-chip component such as a non-volatile memory. Accordingly, the drawback which is caused by the high cost of a conventional two-point calibration in prior art is solved.

Abstract: A method for calibrating an electronic chip comprises: the placing of a calibration transducer of a chip to be calibrated in contact with a first element and the measurement of a corresponding temperature variation ?Tc with this calibration transducer, the calibration thermal transducer having thermal characteristics different from those of the normal transducer so as to measure a temperature variation ?Tc that is different from a variation ?T1 measured by the normal transducer, and the calibration of the chip to be calibrated on the basis of the measured variations ?T1 and ?Tc.