Two core magnetic temperature sensor

Details Two core magnetic temperature sensor Two core magnetic temperature sensor

1977-01-31

1978-06-20

Gill, James J.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

G01K 738

Patent

active

040954684

ABSTRACT:
A temperature sensing device which utilizes a pair of inductively wound magnetic cores is disclosed. The cores are constructed so that the permeability of one core changes with temperature at a rate which is different from the rate that the permeability of the other core changes, with respect to temperature. A plot of inductance vs. temperature, thus varies so that the curves for the two cores intersect at the temperature which is to be sensed. The cores are connected together in a four-arm inductance bridge network and a null detector is coupled to the bridge network to provide an electrical output signal.

REFERENCES:
patent: 1945378 (1934-01-01), Robbins
patent: 3054044 (1962-09-01), Shevel, Jr.
patent: 3248466 (1974-11-01), Dial et al.
patent: 3413540 (1968-11-01), Vansant
patent: 3950993 (1976-04-01), Sidor

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