Sensor

Details Sensor Sensor

1977-06-23

1978-05-23

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

73 375, 128 208, 73755, G01B 1312, G01F 168

Patent

active

040904067

ABSTRACT:
First and second elongated conduits each have an inlet and an outlet. First and second resistive elements having a resistance related to their temperature are disposed in the first and second conduits, respectively, in heat transfer relationship with gas flowing therethrough. A mixture of a first gas and a second gas having a different thermal conductivity than the first gas is supplied to the inlet of the first conduit in a fixed ratio. A mixture of the first and second gases is supplied to the inlet of the second conduit in a variable ratio related to a variable pressure to which a branch of a T-network is exposed. The sensor is specifically employed as a flowmeter, a micrometer, or a pressure sensor.

REFERENCES:
patent: 3091113 (1963-05-01), Nerbeim
patent: 3452595 (1969-07-01), Auger
patent: 3949739 (1976-04-01), Rodder

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