Low cost calibration system for frequency varying temperature se

Details Low cost calibration system for frequency varying temperature se Low cost calibration system for frequency varying temperature se

1991-11-26

1993-10-26

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

Composite temperature-related paramenter

165 12, 236DIG8, 36457103, G01K 1500

Patent

active

052559750

ABSTRACT:
Low cost temperature sensor for thermostats utilizing a calibration resistor and a microprocessor with switchable ports wherein said microprocessor selects between high impedance input or an output for a temperature sensing element and a calibration resistor where by selecting the input, the temperature sensing element or the calibration resistor are effectively removed from the circuit thus allowing the low cost temperature sensor to self calibrate itself.

REFERENCES:
patent: Re32960 (1989-06-01), Levine
patent: Re33119 (1989-11-01), Baker
patent: 3906391 (1975-09-01), Murdock
patent: 4041382 (1977-08-01), Washburn
patent: 4125023 (1978-11-01), Amemiya et al.
patent: 4369352 (1983-01-01), Bowles
patent: 4377346 (1983-03-01), Beaver et al.
patent: 4497586 (1985-02-01), Nelson
patent: 4505600 (1985-03-01), Suzuki et al.
patent: 4627745 (1986-12-01), Rider
patent: 4841458 (1989-06-01), Levine et al.
patent: 4854723 (1989-08-01), Her

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