Gradient compensated temperature probe and gradient compensation

Details Gradient compensated temperature probe and gradient compensation Gradient compensated temperature probe and gradient compensation

1983-08-12

1986-01-07

Stephan, Steven L.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

374163, G01K 700

Patent

active

045630984

ABSTRACT:
A gradient compensated temperature probe including a probe body and a temperature responsive element in the probe body at a measuring location couplable to a conventional temperature sensing circuit. The probe further includes a heating element spaced apart from the temperature responsive element for heating the probe to compensate for a temperature gradient along the probe. The probe further includes a bridge circuit, the legs of which each include a temperature dependent resistor located in the probe body between the heating element and the temperature responsive element. A comparator detects a temperature difference between the two temperature dependent resistors to control the application of power to the heating element to provide temperature gradient compensation for the probe.

REFERENCES:
patent: 3296866 (1967-01-01), Zenmon et al.
patent: 3832902 (1974-09-01), Usami et al.
patent: 3878728 (1975-04-01), Marzetta
patent: 4092863 (1978-06-01), Turner
patent: 4183248 (1980-01-01), West

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