Precision temperature measuring system

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324105, 340501, 374172, 374181, G01K 702, G01R 522

Patent

active

045758069

ABSTRACT:
An improved system for precisely measuring temperatures at remote locations using a microprocessor and resistance temperature detectors is achieved by providing means for pre-selecting a particular temperature range and using this temperature range information to generate a comparison level for determining the measured temperature. By employing the present invention, the fixed number of bits used to produce the temperature information output is concentrated over a limited range of temperatures, thereby achieving greater precision, since each information bit represents a much smaller number.

REFERENCES:
patent: 3766782 (1973-10-01), Shimomura
patent: 3843872 (1974-10-01), Shimomura
patent: 4102199 (1978-07-01), Tsipouras
patent: 4114447 (1978-09-01), Creach
patent: 4122719 (1978-10-01), Carlson et al.
patent: 4122720 (1978-10-01), Podl
patent: 4217651 (1980-08-01), Pickering
patent: 4276603 (1981-06-01), Beck et al.
patent: 4288853 (1981-09-01), Uesugi
Radio Electronics, Nov. 1981, "Expanded Scale Voltmeter", T. J. Byers, pp. 52-56.

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