Abstract: A multi-channel remote diode temperature sensor includes a variable current supply configured to provide a base or an elevated current, a bias circuit, an analog-to-digital converter having a first and second input terminals, a logic block and a switch arrangement. The switch arrangement cooperates with the logic block to electrically connect the current supply, bias circuit and analog-to-digital input terminals to first and second data pins. Pairs of anode-to-cathode connected remote diodes in electrical communication with the data pins are monitored by measuring the difference in forward voltages at the two currents. Reversal of the configuration of the switch arrangement paths permits monitoring of the other member of the anode-to-cathode remote diode.

Abstract: A remotely programmable integrated sensor transmitter device for measuring and reporting a physical quantity of a given medium comprises a sensor for measuring a physical quantity of a medium and providing an electrical output as a function of the property measured, a scaler module for receiving the electrical output and for producing a scaled analog signal as a function of the physical quantity and a scale selection input, and a data interface for receiving programming data from an external computer and for providing the scale selection output to the scaler module.

Abstract: An axillary thermometer for measuring the temperature of a patient comprising a first disk-shaped member having a circumferential edge, and an upper portion and lower portion, that is integrally connected, and angularly situated, via a connecting member joint, to a second disk-shaped member having a top side and a bottom side. The top side of the second disk-shaped member, including an actuation switch and display, being proximate the upper portion of the first disk-shaped member such that viewing of the temperature display can be simultaneously accomplished with the temperature taking process. The first disk-shaped member further having at least one temperature sensor along its circumferential edge of the upper portion with the at least one temperature sensor being connected to at least one temperature sensing circuitry.

Abstract: A simple recording device using a stable electric resistance heater in thermal contact with an irreversible color changing time temperature material relatively insensitive to room temperatures to show and record the cumulative time an electrical appliance, battery, tool, instrument has been used. The device may use a plurality of thick film carbon printed resistive heater with a thermal gradient in contact with the time temperature material or a simple adhesive calibrated time temperature film on a surface mounted stable resistor. The indicator is in parallel or series with the power switch. The time temperature material is in thermal contact with a constant temperature heater when used in fluctuating ambient temperature conditions.

Abstract: An electronic circuit comprising means (CMNS) for controlling a current (IL) through a coil (L) for the generation of a magnetic field (H). The means (CMNS) comprise means (DMNS) for the determination of a parameter which is a measure for the value of the resistance (RL) of the coil (L). During operation the maximum absolute value of the current (IL) is decreased when the parameter exceeds a certain limit.

Abstract: A liquid level sensor comprising a thermistor probe and a power source connected to the thermistor probe to heat the thermistor probe. A cover encases the thermistor probe and includes openings allowing liquid to enter and exit an interior of the cover and contact the thermistor probe. A detector detects a liquid level in response to a voltage at the thermistor probe.

Abstract: A thermowell assembly (20) shown in FIG. 2 is positioned in a pipeline (10) for sensing the temperature of the fluid medium in the pipeline (10) for transmitting the sensed temperature to a meter (12). A temperature sensing probe is received within a temperature conducting tube (36) forming a thermowell and having a plurality of annular fins (40) extending thereabout. In the embodiments of FIGS. 1–7, a liquid (50) is provided in an annular space between the thermocouple (28) and the temperature conducting tube (36). Non-metallic members (70, 74, 80) are positioned between the pipeline (10) and the temperature transmitting tube (36) to isolate thermocouple (28) from ambient changes in the temperature of metal pipeline (10) which may result in an error in the temperature of the flow medium sensed by the thermowell assembly (20). High temperature embodiments shown in FIGS.

Abstract: The invention involves a process for heating a semi-conductor component, as well as a semi-conductor component, whereby a device for heating the semi-conductor component is provided on the semi-conductor component.

Abstract: A telemetry system includes a transmitter unit that measures a first value of a parameter, incorporates the first value in a first data packet and transmits the first data packet, and measures a second value of the parameter, incorporates the second value and the first value in a second data packet and transmits the second data packet. A receiver unit periodically receives a signal and generates a sequence of bits therefrom, determines whether the sequence of bits includes a payload that meets a predetermined standard and, if so, recovers a more recent datum from the payload else enters a data recovery mode. In the data recovery mode, the receiver unit receives a transmission signal and generates a second sequence of bits and determines whether the second sequence of bits contains a payload that meets the predetermined standard and, if so, recovers both a more recent datum and a less recent datum from the payload.

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.

Abstract: A system and method for sensing the temperature of a device. This includes the establishment of a programmable current from an on-chip source, which in turn is used to produce a temperature dependent voltage from a temperature dependent resistive device. The temperature dependent resistive device is thermally coupled to a device for which the temperature is to be sensed. The temperature dependent voltage produced is converted to a digital value and equated to the temperature of the device.

Abstract: A circuit for temperature sensing receives a differential voltage that corresponds to the voltage across a forward-biased PN junction. The circuit for temperature sensing provides a first current to the PN junction, and subsequently provides a second current. Also, the temperature of the PN junction is determined based on the difference between the differential voltage when the first current is applied and the differential voltage when the second current is applied. Further, the circuit for temperature sensing self-biases half of the differential signal. The other half of the differential signal is level-shifted by an amount that is fixed and predetermined based on the self-biasing to provide a sub-ranging voltage. A sub-ranging analog-to-digital conversion is performed on the differential voltage in which the sub-ranging voltage is subtracted from the differential voltage during the conversion.

Abstract: An instrument measures the LED junction temperature directly by taking advantage of the linear relationship between the forward current driven through the LED, the forward drop of the LED, and the junction temperature to determine the LED junction temperature. Calibration is conducted by placing two LEDs from the same family in ambient temperature and passing a small test current through each of the LEDs to obtain the forward drop of the LED at ambient temperature. The LED under test is then placed in an environmentally-controlled chamber where the temperature is raised a known amount above ambient temperature. Known low and high voltage values are associated with the ambient temperature and the environmental chamber temperature, causing the LED under test becomes a calibrated thermometer that can measure its own junction temperature due to the linear relationship between the forward drop and the junction temperature.

Abstract: The present invention provides a temperature sensitive ring oscillator (TSRO) in an integrated circuit. A temperature measuring device, such as a thermal resistor, is proximate the TSRO, which shares a substantially similar temperature. A memory is employable for storing data that is a function of the output of the TSRO and the temperature measuring device.

Abstract: A measuring arrangement, in particular, for temperature measurement in an accumulator pack, with at least one cell (10) for storage of electrical energy, at least one cooling body (12) thermally connected with the cell (10) for cooling the cell (10), and at least one temperature sensor (14). The temperature sensor (14) is thermally connected with the cooling body (12).

Abstract: A circuit in an integrated circuit for measuring temperature dependent voltages of a temperature sensing element includes a voltage generator circuit providing the temperature dependent voltages, a first sampling switch and a second sampling switch. The voltage generator circuit includes a temperature sensing element being excited by a first switched current and a second switched current. The first and second sampling switches sample a first voltage and a second voltage at the temperature sensing element while the temperature sensing element is being excited by the second current and the first current, respectively. Each of the first and second sampling switches includes a boosted switch circuit incorporating a pedestal voltage compensation circuit. The sampled first and second voltages are coupled to be stored on capacitors external to the integrated circuit. The difference between the first voltage and the second voltage is measured to determine the temperature of the integrated circuit.

Abstract: A transparent face temperature sensor 3 for measuring temperature comprises a transparent insulating substrate 7 for the sensor, a transparent electrically conductive film 9 for the sensor provided on at least either one of the surfaces of the substrate, a pair of terminals 11 connected to the film. The wires 13 are made of copper and constantan, respectively. The sensor 3 is bonded in electrical insulation conditions, to the a transparent face heater 5, via a insulating sheet 25 and a silicone resin, and hold in a housing 27. Temperature-measuring point is not one point, but an entire surface. Accordingly, the face temperature sensor 3 can detect the average temperature over the entire surface of the sensor film 9.

Abstract: A temperature sensor for a MOS circuit configuration is implemented as the gate of a MOS transistor and configured as a two-terminal network with a gate input and a gate output. By measuring the voltage drop across gate it is possible to determine the temperature at its location.

Abstract: A electronic medical thermometer (1) comprises a maincase (2) which is made substantially of transparent material. The main-case thermometer (1) has a display element (6) for displaying the temperature and the maincase (2) has a display area (7) through which the display element can be observed. The maincase (2) further has an additional transparent or translucent area (8), through which an interior member such as a subcase (17) or the decorative sheet (27) are provided with a colored or patterned surface.

Abstract: The present invention is a random access memory device including a temperature sensing circuit, and method of using the same. The temperature sensing circuit includes a first and a second comparator. Each comparator is configured to receive a sense voltage that is indicative of a sensed temperature. A first temperature reference circuit having a plurality of first reference voltages is coupled to the first comparator. The plurality of first reference voltages are alternately compared with the sense voltage. A second temperature reference circuit having a plurality of second reference voltages is coupled to the second comparator. The plurality of second reference voltages are alternately compared with the sense voltage. A first trimmer is coupled to the first temperature reference circuit. A second trimmer coupled to the second temperature reference circuit. The first and second trimmers are independently adjustable to adjust the plurality of first and second reference voltages.

Abstract: A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.

Abstract: A sensor 2 of a data collection system 2 is designed to make, in a predetermined environment, an operation of writing output data of a sensing circuit 24 into a non-volatile memory 22 as reference-value data, and, in a measurement environment, an operation of transmitting output data of the sensing circuit and reference-value data stored in the non-volatile memory, under the control of a memory control section 25, thereby selectively performing by itself the data-writing or data-transmitting operation without receiving instructions from a readout device.

Abstract: A patient temperature repeating system and a method of repeating patient temperature information from a resistive-type patient temperature sensor allow one or more medical instruments to utilize a single patient temperature sensor. In one embodiment, the patient temperature repeating system (10) includes input and output connectors (12, 14), a microprocessor (20), optical isolators (22), a coarse digital potentiometer (24) in parallel with a fine digital potentiometer (26), a current sense resistor (28), amplifiers (30A, 30B), analog-to-digital converters (32A, 32B), a filter (34), fuses (36), a non-volatile memory device (38), and a relay (40).

Abstract: A method and apparatus for aspirating a liquid (e.g., blood) from a container uses an electrically biased thermistor element, mounted proximate the tip of a liquid-aspirating probe, to determine that the probe is safely submerged within a body of liquid to be aspirated at all times during the aspiration process. Also disclosed are different aspiration probe assemblies that are useful in the method and apparatus of the invention.

Abstract: A temperature information detecting device for an angle sensor is provided for detecting only temperature-dependent components based on middle-point potentials when a constant current is supplied to a bridge circuit for an angle sensor, for acquiring a temperature of the angle sensor from the temperature-dependent components, for employing compensating information corresponding to the acquired temperature without separately providing any additional temperature sensor, and for making temperature compensation of the output of the temperature sensor in automatically controlling the valve opening of a flow control valve.

Abstract: A temperature-indicating power adapter includes a case, a conversion module coupled to the case that receives a first voltage and produces a second voltage. The adapter also includes a temperature-indicating device that is also coupled to the case for indicating the temperature of the case.

Abstract: The invention relates to a device and a method for detecting the reliability of integrated semiconductor components. The device includes a carrier substrate for receiving an integrated semiconductor component that will be examined, a heating element, and a temperature sensor. The temperature sensor has at least a portion of a parasitic functional element of the semiconductor component. As a result, reliability tests can be carried out in a particularly accurate and space-saving manner.

Abstract: A device for detecting thermally caused linear expansions of a machine element, wherein the device includes a temperature sensor placed along an expansion direction. The temperature sensor includes a first metallic conductor having an electrical resistance that is proportional to an average temperature of an area to be monitored and a plurality of trimmer tracks in the form of further metallic conductors placed next to the first metallic conductor. The temperature sensor further includes electrical connections selectively interconnecting the plurality of trimmer tracks with the first metallic conductor and wherein the plurality of the trimmer tracks have an effective electrical resistance that is proportional to the average temperature of the area to be monitored.

Abstract: A coil (50) is placed adjacent to a semiconductor wafer (10). An AC excitation current is used to create a changing electromagnetic field (60) is the wafer (10). The wafer is heated by a heat source (20) and the conductivity of the wafer (10) will change as a function of the wafer temperature. Induced eddy currents will cause the inductance of the coil (50) to change and the temperature of the wafer (10) can be determined by monitoring the inductance of the coil (50).

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.

Abstract: A probe for measuring the surface temperature of a pipe includes a detector assembly and a rectangular strap. The detector assembly includes a rigid, unitary clamp member having a bottom, pipe engagement surface, an oppositely disposed upper surface, and first and second locking dogs extending upwardly from the upper surface. The locking dogs define a gap having a width WG. A temperature sensor assembly is carried on the pipe engagement surface. The proximal end portion of the strap is mounted to the clamp member. The strap is flexible, longitudinally resilient and has a thickness TU in an unstretched condition and a thickness TS in a stretched condition, where TU>TS, TU>WG, and WG>TS. The probe is mounted to the pipe by positioning the pipe engagement surface of the clamp member against the pipe, wrapping the strap around the pipe, and applying a tensile force to the distal end portion of the strap such that the thickness of the strap decreases from TU to TS.

Abstract: A device for measuring the temperature within a body from a body surface at a different temperature, comprising: a heat shield for application to the body surface, comprising an outer heat-conducting portion (52), and an inner heat-insulating portion (50); a heater or cooler (41) to heat or cool the outer portion (52) of said heat shield to the temperature of the body surface; a first temperature sensor (37) positioned on a surface of the inner heat-insulating portion (50) of the heat shield which is applied to the body surface; a second temperature sensor (38) positioned to measure the temperature of the outer portion (52) of the heat shield; a heater or cooler control circuit to heat or cool the outer portion (52) of the heat shield towards the temperature measured by the first the first temperature sensor (37); and a second control circuit to forecast the first temperature sensor (37) equilibrium temperature.

Abstract: A temperature sensor may include a capacitor, a circuit element coupled in series with the capacitor and having a resistance that varies with temperature, and a controller. The controller is for charging/discharging the capacitor through the circuit element, measuring a charging/discharging time required to charge/discharge the capacitor to a predetermined threshold, and determining a temperature based upon the charging/discharging time. More specifically, the circuit element may be a thermistor, for example. The temperature sensor may further include at least one calibration resistor coupled between the controller and the capacitor.

Abstract: A current probe transformer temperature monitoring method determines an initial transformer temperature of the current probe as a function of the winding resistance of the transformer. A relative temperature of the Hall Effect device is also determined as a function of resistance change of the Hall Effect device. The initial transformer temperature and the relative Hall Effect device temperature are combined to produce a continuous transformer temperature indicative of the temperature of the transformer. The current signal to the multi-turn winding is removed when the continuous transformer temperature exceeds a threshold temperature value and a visual indication may be provided.

Abstract: Circuits and methods for generating a temperature dependent signal are described involving: generating a thermal voltage referenced positive temperature coefficient signal using a pair of transistors operating at different current densities; generating a transistor voltage referenced negative temperature coefficient signal using a transistor voltage of one of said pair of transistors; and subtracting one of said positive and negative temperature coefficient signals from the other of said signals to generate said temperature dependent signal, whereby the temperature dependence of said temperature dependent signal is greater than either of said subtracted signals.

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.

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.

Abstract: A device for measuring temperature of a semiconductor integrated circuit includes first and second current mirror circuits, an N channel transistor connected to an output terminal of the second cur rent mirror circuit, an npn transistor connected to an output terminal of the first current mirror circuit and the N channel transistor, and an operational transistor connected to a node between the second current circuit and the N channel transistor. Currents that flow from the second current mirror circuit to the N channel transistor and from the N channel transistor to the npn transistor have different temperature coefficients. The operational amplifier corrects the difference in the temperature coefficients of these currents to output a voltage of ground electric potential standard.

Abstract: A method for digitally controlling the resistive output of a temperature probe is disclosed. The system is comprised of a temperature sensor, a processor and a means under the control of the processor for modifying the resistive output such as a digital potentiometer. In one embodiment, the processor reads the temperature sensor and adjusts the potentiometer based on a correlative or predictive technique so as to provide a modified output that matches that of a standard resistive temperature probe and is compatible for display on a multiparameter monitor.

Abstract: An apparatus including a reference resistor for use with ratiometric temperature sensing of a device to be sensed. The resistive element has a resistance dependant upon a temperature of the device to be sensed and is electrically coupled to a reference resistor. The reference resistor is maintained at a substantially constant temperature by a temperature controller. A sensor circuit is electrically coupled to the resistive element and the reference resistor to sense their electrical parameters when a current passes through them.

Abstract: For detecting the temperature of a fluid, particularly a flowing liquid or gaseous medium, in the hollow space of a housing, a temperature-measuring element is provided that can be connected to an evaluation device via a plug arrangement and is arranged in a protective tube of a sensor housing, which is closed on one side, and with a connection piece firmly affixed thereto. The protective tube projects at least with its tip into an opening of the hollow space that is sealed off from the outside atmosphere using an elastic O-ring. The temperature-measuring element is arranged in the region of the tip of the protective tube on one end of a longitudinally extending circuit board and is connected via strip conductors to the plug arrangement that leads to the outside. The plug arrangement is surrounded by a screw sheath of the sensor housing, which is firmly connected to the protective tube and is provided with a threading that projects into the housing of the hollow space for the purpose of mounting.

Abstract: A method for measuring a temperature of an integrated circuit is disclosed. The integrated circuit includes a temperature sensing element being excited by a first switched current and a second switched current. The method includes coupling a first capacitor to the temperature sensing element through a first switch and coupling a second capacitor to the temperature sensing element through a second switch. The first and second capacitors are external to the integrated circuit. The method further includes charging the first capacitor through the first switch to a first voltage when the temperature sensing element is being excited by the first switched current, charging the second capacitor through the second switch to a second voltage when the temperature sensing element is being excited by the second switched current, and measuring a difference between the first voltage and the second voltage to determine the temperature of the integrated circuit.

Abstract: A semiconductor temperature detecting circuit use semiconductor temperature sensors each comprising bipolar transistors connected in a Darlington connection to provide a semiconductor temperature detecting circuit capable of automatically compensating for variations in fabrication of a reference voltage for comparing outputs of temperature sensors. The semiconductor temperature detecting circuit includes a first and a second semiconductor temperature sensor each having bipolar transistors connected in Darlington connection and respectively receiving different constant currents (I and nxI). Temperature detected is based on a corresponding relationship between a ratio of output voltages of the first and the second semiconductor temperature sensors and the temperature.

Abstract: A flexible wired circuit board for temperature measurement that can provide an accurate temperature measurement even when placed in a high-temperature atmosphere and can also be provided at a reduced cost. In the flexible wired circuit board for temperature measurement, a conductor layer formed from a metal foil, such as a stainless foil, having a proportional relation between temperature and specific electric resistance is formed on a base insulating layer. Also, a single thin sensor wiring in a sensor portion exposed from a cover insulating layer is formed into a certain pattern by folding back the sensor wiring in a continuous S-shaped form, such that adjacent parts of the wiring extending in parallel are spaced apart from each other at a predetermined interval in a widthwise direction of the conductor layer.

Abstract: A method for identifying the classification of temperature detection components of the electronic thermometer that has a disposable temperature detection component and a main device for measuring and displaying temperature. To achieve measuring accuracy, the temperature detection component has a classification identification zone formed on a desired location. When the temperature detection component is coupled to the main device, the main device determines the classification attribute of a temperature detection element of the temperature detection component based on the indication of the classification identification zone, and through process software resided in the main device automatically calculates and displays the accurate temperature value.

Abstract: Display with a heater, a) the display having at least one display glass, b) the heater having an electrically operated heating element connected to a voltage supply (UB, GND), c) the heating element comprising a thin layer, d) the layer being made of a material forming an electrical resistance, and e) the layer being applied over a surface area to the at least one display glass or being embedded over a surface area in the display.

Abstract: A temperature measuring sensor is incorporated in a substrate of a semiconductor device to measure a temperature of the substrate. The sensor has a diode formed in the substrate, and a resistor formed in the substrate and connected to the diode in series. When a first forward constant current is supplied to the diode through the resistor, a potential difference VA1 is produced between terminal ends of both the diode and the resistor connected in series, and a potential difference VF1 is produced between terminal ends of the diode. When a second forward constant current is supplied to the diode through the resistor, a potential difference VA2 is produced between the terminal ends of both the diode and the resistor connected in series, and a potential difference VF2 is produced between the terminal ends of the diode.

Abstract: A calibration system for use with a radiant heater of an infant apparatus such as an infant warmer or an infant incubator. The system includes an electrical circuit that is used to sense the temperature of the infant by means of a thermistor and to provide a digital signal representative of the temperature. An automatic calibration system avoids the use of potentiometers by inputting two known voltages into the circuit by means of a voltage divider and recording the digital output for each voltage input. The two known voltage inputs and the known digital outputs are used in two equations to solve for the span and offset constants in those equations. Once determined, those constants are used to calibrate the system.

Abstract: The invention relates to a reader for an electromagnetic radiation detection element comprising: at least one integration capacitor (16) to integrate electrical charges output by the said detection element, an amplifier (18) with a high impedance terminal (20) connected to the integration capacitor (16) and a low impedance terminal connected to an output stage (22), and means (24, 27) of isolating the integration capacitor (16) from the detection element when the capacitor voltage exceeds a set value. According to the invention, the comparator means are connected to the low impedance terminal (50) of the amplifier (18). Application to sensors in matrices.

Abstract: A device for determining the temperature in the interior of a vehicle includes a temperature sensor for arrangement behind a wall adjacent the interior, and a processing unit receiving the measuring signal from the temperature sensor and outputting an output signal representing the temperature in the interior of the vehicle, and a thermal conductor for sensing the temperature of the air in the interior in the region close to the wall, the thermal conductor being in thermally conductive contact with the temperature sensor and being provided to extend up to or close to the wall or through an opening in the wall.