Compensating circuit for a cold junction of a thermocouple

Details Compensating circuit for a cold junction of a thermocouple Compensating circuit for a cold junction of a thermocouple

1974-09-20

1976-05-11

Envall, Jr., R. N.

Electricity: single generator systems

Nonmagnetic-type generator

73361, 324105, G01K 572, G01K 712

Patent

active

039566862

ABSTRACT:
A compensating circuit for a cold junction of a thermocouple includes a sign inverting amplifier, a power source and a summing amplifier. A thermo-electromotive force of the thermocouple, the output of the sign inverting amplifier and the voltage of the power source are applied to one input terminal of the summing amplifier through resistors. An output corresponding to the temperature of the hot junction of the thermocouple is obtained from the output terminal of the summing amplifier.

REFERENCES:
patent: 3582761 (1971-06-01), Hall, Jr.
patent: 3650154 (1972-03-01), Arnett et al.
patent: 3754442 (1973-08-01), Arnett
patent: 3793630 (1974-02-01), Meijer

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