High resolution digital thermometer

Details High resolution digital thermometer High resolution digital thermometer

1992-02-05

1994-03-22

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

36457103, 36457104, 374 10, 374114, 374171, G01N 2500, G06F 702

Patent

active

052957462

ABSTRACT:
A high resolution digital thermometer capable of measuring temperature differences on the order of several micro-degrees centigrade. The device includes a bridge circuit having two thermistors in series. An output of the bridge circuit feeds a signal to an analog-to-digital convertor via a high gain amplifier. A computer maintains the balance of the bridge circuit to avoid a situation wherein the range of the analog-to-digital convertor would be exceeded.

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