Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1992-10-07
1993-10-19
Yasich, Daniel M.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
307310, 323294, 374208, G01K 724, G01K 3306
Patent
active
052539385
ABSTRACT:
An uncomplicated and reliable temperature sensor has a pair thermistors coupled in parallel with a current source that is connected in series with a load resistor. Temperature variations cause a robust current output change that generates a corresponding robust output voltage determined by a proper selection of the load resistor. Increased sensitivity is provided by the robust current to avoid many of the problems otherwise associated with D.C. amplifiers (e.g., drift).
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"National Semiconductor", Industrial/Automotive/Functional Blocks/Telecomications, (pp. 9-13, 9-14, 9-15, 9-16, 9-17, 9-18, 9-19 and 9-20), (LM 334).
Fendelman Harvey
Keough Thomas Glenn
The United States of America as represented by the Secretary of
Yasich Daniel M.
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