Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1977-11-08
1979-12-04
Swisher, S. Clement
Measuring and testing
Gas analysis
Moisture content or vapor pressure
G01K 724
Patent
active
041765567
ABSTRACT:
An electronic thermometer utilizes a microprocessor, a bridge circuit containing a temperature responsive transducer, a charge and discharge circuit, and an interrupt signal generating circuit, to provide an accurate temperature measurement while reducing the size of the measuring apparatus. A counted value corresponding to a reference temperature is added to a counted value corresponding to the time it takes a capacitor connected to the bridge circuit to discharge, and the result is converted to a temperature degree displayed after operation in the microprocessor.
REFERENCES:
patent: 3620082 (1971-11-01), Peters
patent: 3702072 (1972-11-01), Georgi
patent: 3702076 (1972-11-01), Georgi
patent: 3875503 (1975-04-01), Hayashi
patent: 3911374 (1975-10-01), Bussc
patent: 4009615 (1977-03-01), Ruhl
Omron Tateisi Electronics Co.
Swisher S. Clement
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