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Class 374/112 - Difference or gradient


Subclass of Class 374 - Thermal measuring and testing
Definition: Subject matter wherein the resultant measurement is the
No. of patents: 81
Last issue date: 10/21/2008


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NumberTitleIssue Date
7438466Calibrating a thermal scanning system
A method for recalibrating a bilateral thermal scanner comprising a first thermal sensor and a second thermal sensor can comprise acquiring a first set of thermal scanning data with the thermal sensors in their normal positions; optionally analyzing the first set of...
10/21/2008
7427157Wind velocity measuring apparatus
A wind velocity measuring apparatus. The apparatus includes a thermal sensor and a processor operatively coupled to the thermal sensor. The processor is configured to receive a first temperature reading from the thermal sensor of a beginning temperature sensed by th...
09/23/2008
RE40470Body function measuring apparatus
Body function measuring apparatus which provides: (1) an indication of the body function being measured, and (2) a loose probe condition by determining that the difference between the rate of change of a first body function signal, developed by a first sensor in the...
08/26/2008
7380982Accurate temperature measurement for semiconductor applications
A temperature sensing component enables accurate in situ temperature measurement. The temperature sensing component is disposed within the process chamber. The temperature sensing component has a cavity, in which a transparent cover is disposed over an opening of th...
06/03/2008
7350974Temperature detection circuit
A temperature detection circuit according to the present invention includes a potential generating part and a temperature detection part. The potential generating part generates a potential according to an environmental temperature, and the temperature detection par...
04/01/2008
7347621Method and system for real-time estimation and prediction of the thermal state of a microprocessor unit
A method (and system) of predicting a thermal state of a transient thermal system, includes combining sensor outputs and thermal parameters to construct a consistent set of estimates of internal temperature of a transient thermal system. ...
03/25/2008
7329043Thermal properties testing apparatus and methods
An apparatus for testing properties of a product comprising a thermal barrier layer comprises an ignition source, a test stand that extends a sample of the product over the ignition source, and a means for measuring thermal transfer across the sample. The apparatus ...
02/12/2008
7304272Systems and methods for adjusting parameters of a temperature sensor for settling time reduction
A system for adjusting parameters of a temperature sensor for settling time reduction is disclosed. The system includes an input for receiving a signal for triggering an adjustment of one or more parameters associated with one or more portions of the temperature sen...
12/04/2007
7275011Method and apparatus for monitoring integrated circuit temperature through deterministic path delays
An apparatus for monitoring the temperature of an integrated circuit device includes a conductive wiring pattern formed on the integrated circuit device, extending into areas of the device to be monitored. A deterministic signal source is configured to generate a de...
09/25/2007
7270476Electronic clinical thermometer with quick temperature estimating device
An electronic clinical thermometer has one of two temperature measuring devices each for measuring a live body temperature. A temperature estimating device estimates an equilibrium body temperature from a first data item related to change in temperature measured by ...
09/18/2007
7249881Method and apparatus for characterization of devices and circuits
A method and apparatus for performing characterization of devices is presented. The characteristic of the device are determined by obtaining a first temperature measurement in a first location of a device, obtaining a second temperature measurement, computing the di...
07/31/2007
7147368Measuring device for heat pipe
In this study, plate type heat pipes having mesh capillaries were investigated experimentally and theoretically. A test apparatus was designed to test thermal performance of a plate type copper-water heat pipe having one or two layers of #50 or #80 mesh capillary st...
12/12/2006
7144152Apparatus for thermal management of multiple core microprocessors
An apparatus for managing the temperature of an integrated circuit having a multiple core microprocessor is described. Specifically, thermal sensors are placed at potential hot spots throughout each microprocessor core. A thermal management unit monitors the thermal...
12/05/2006
7119308Forced-air heater control system and method
The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant from the heating element(s). The control system, in this embodiment, tak...
10/10/2006
7075652Apparatus and method for measuring temperature dependent properties of liquid
The present invention relates generally to a method and apparatus for measurement of optical properties of a liquid as a function of temperature. The method and apparatus are based on formation of a stable temperature gradient through the holding cell containing the...
07/11/2006
7049250Heat treatment for edges of multilayer semiconductor wafers
A method for heat treating a multilayer semiconductor wafer having a central region and a peripheral edge each having a surface. The method includes selecting thickness values for the layers of the wafer to provide substantially equivalent heat absorption coefficien...
05/23/2006
7044637Temperature measuring apparatus
A temperature measurement apparatus allows for accurate temperature measurement in both the sun and the shade using two different thermal sensors. A black sensor has an infrared absorbent surface and a white sensor has an infrared reflecting surface. Using the measu...
05/16/2006
7011444Fire sensor
A fire sensor comprising a baseplate, a temperature detecting element, and a protective case. The baseplate has an outside surface which serves as a heat sensing surface which is exposed to a hot airflow generated by a fire. The temperature detecting element thermal...
03/14/2006
7004625System and method for temperature sensing and monitoring
An approach for digitally measuring temperature in support of a monitoring application is disclosed. Multiple probes, according to one embodiment, are deployed for sensing environmental parameters (e.g., temperature, liquid level, flow). Each probe has a thermally c...
02/28/2006
6945691Method and apparatus for inferring a temperature
A heat-conducting element having known length D is disposed at a first end in a first region having a first temperature T1 to be inferred. The second end of the element is disposed in a second region having a measureable second temperature T2 d...
09/20/2005
6916115System and device for characterizing shape memory alloy wires
Instruments and methods for measuring a property of a shape memory alloy are provided. The instrument includes a base plate, a non-contact movable mass, a force gauge, an actuator, a biasing spring, a heater for heating the shape memory alloy, and a non-contact disp...
07/12/2005
6914764On-chip thermal sensing circuit
An on-chip thermal sensing circuit is disclosed. The thermal sensing circuit including a detection circuit located on an integrated circuit (IC) for detecting a local temperature of the IC. The output of the thermal sensor has a frequency that is directly related to...
07/05/2005
6902317Method and device for measuring thermoelectric characteristics of combinatorial specimen
A method and device for measuring thermoelectric characteristics of a combinatorial sample. The method and device are useful for rapid sample evaluation, the investigation of thermoelectric materials, and the carrier control of semiconductors. The device includes co...
06/07/2005
6851260Shape memory alloy actuator
A shape memory alloy actuator comprising a body (1) connected through an arm (5) with an activating member (15), the body (1) being arranged for rotation around a pivot (2) and connected to a first wire (9) and a second wire...
02/08/2005
6837619Furnace temperature detector
A furnace temperature detector includes a spike thermocouple attached to a heating chamber; an overheat thermocouple attached to the heating chamber; an inner thermocouple installed inside a reaction tube; a temperature controller connected to the spike thermocouple...
01/04/2005
6595686Device for measuring effective temperature
The invention relates to a device for measuring the temperature of a gas, especially air, said temperature (so-called effective temperature) being measured at least according to speed (wind intensity) and humidity. The inventive device comprises a housing...
07/22/2003
6579005Utilization of pyrometer data to detect oxidation
A method for determining oxidation in turbine buckets allows for conditional based maintenance of the turbine buckets. The method includes measuring a temperature of a turbine bucket and comparing the measured temperature to a temperature of a reference t...
06/17/2003
6398740Apparatus and method for monitoring the temperatures on the plantar aspects of a human foot and other vital health information
An apparatus and method for monitoring items of vital health information including temperature of the plantar aspects of the foot of the human, body weight, blood pressure, pulse rate, blood glucose level and blood oxygen level. The apparatus includes a p...
06/04/2002
6293455Method for producing a reliable BGA solder joint interconnection
A method and an arrangement for measuring the cooling rate and thermal gradient between the top and bottom surfaces of a printed circuit board. Moreover, it is intended to facilitate control over the temperature gradient which is encountered between the t...
09/25/2001
6292685Temporal artery temperature detector
Body temperature measurements are obtained by scanning a thermal radiation sensor across the side of the forehead over the temporal artery. A peak temperature measurement is processed to compute an internal temperature of the body as a function of ambient...
09/18/2001
6123675Temperature gradient sensing probe for monitoring hyperthermic medical treatments
Several embodiments of a temperature gradient sensing probe formed from a printed circuit thermocouple array are disclosed. The printed circuit thermocouple array is formed by an electrically insulative sheet having a first surface, a second surface and N...
09/26/2000
6090050Thermometric apparatus and method
A thermometric apparatus useful for recording temperatures, after sensing contact with, or proximity to, a dermal surface is disclosed. The apparatus also provides various visual and aural mechanisms for indicating alarm conditions to the user. A method f...
07/18/2000
6079874Temperature probes for measuring substrate temperature
An apparatus accurately measures a temperature of a substrate in a thermal processing chamber. The apparatus has a support structure to support the substrate within the thermal processing chamber. A first probe is provided with an input end positioned to ...
06/27/2000
5902044Integrated hot spot detector for design, analysis, and control
A matrix of thermal sensors is provided for accurately evaluating the thermal characteristics of an integrated circuit. The integrated circuit is evenly divided into a plurality of sectors in which a thermal comparison to a known thermal mass will be perf...
05/11/1999
5841204Temperature control system and method
A temperature control system and method for regulating the temperature of an external device or load is provided which maintains the actual ambient temperature of the external device at a desired set point temperature. The temperature control system inclu...
11/24/1998
5820263Apparatus and method for monitoring the temperature of a region of human tissue
An apparatus and method for monitoring a temperature around a point of clinical interest. The apparatus has a sensing surface carrying a plurality of temperature detectors in a regular spatial outer disposition around a central detector. A signal processo...
10/13/1998
5816706Method and apparatus for determining internal temperature and coefficient of internal thermal conductivity in a stucture
The invention relates to a method and apparatus for determining the internal temperature and the coefficient of internal thermal conductivity of a structure. In both cases, the surface temperature and ambient temperature of an object are measured from bot...
10/06/1998
5803608Method for generating a signal responsive to the induction air temperature of an internal combustion engine
A method for generating a signal (TAn) responsive to the induction air temperature of an internal combustion engine. The signal (TAn) for the induction air temperature is determined from a signal (TMot) for the temperature of the internal combustion engin...
09/08/1998
5615733On-line monitoring system of a simulated heat-exchanger
A on-line monitoring system of a simulated heat-exchanger which includes a plurality of temperature sensors adapted to detect the temperatures of cold water and hot water at respective water inlets and water outlets, a flowrate detector adapted to detect ...
04/01/1997
5524483Methods for locating oil or gas deposits employing earth surface temperatures
A method for predicting the likelihood of encountering oil or gas deposits below a location and determining the areal extent and magnitude (economic value) of such deposit. The earth's surface temperature at selected points within a location is compared t...
06/11/1996
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