Thermistor thermometer

Details Thermistor thermometer Thermistor thermometer

1985-10-22

1986-07-29

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

Composite temperature-related paramenter

331 66, 364571, 374170, 374171, 377 25, G01K 102, G01K 724

Patent

active

046028714

ABSTRACT:
A thermistor thermometer has a reference resistance correcting section for controlling the number of pulses of an oscillation signal to a predetermined reference value. The oscillation signal is sampled in response to a measuring time signal at a reference temperature. The reference temperature is given as a predetermined temperature below a possible operating temperature range. The thermistor thermometer also has a sensitivity correcting section for operating the thermometer for first and second operating intervals at different counting rates. The first and second operating intervals constitute a sampling period of the measuring time signal. The first and second operating intervals of the sensitivity correcting section are switched over in response to a reference count signal from a temperature counter. The temperature counter counts the oscillation signals sampled in response to the measuring time signal and generates temperature data.

REFERENCES:
patent: 3287975 (1966-11-01), Mason et al.
patent: 3933046 (1976-01-01), Ebrecht
patent: 4453835 (1984-06-01), Clawson et al.
patent: 4464067 (1984-08-01), Hanaoka
patent: 4490803 (1984-12-01), Briggs
patent: 4571095 (1986-02-01), Stoffels

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