Air flow transducer

Details Air flow transducer Air flow transducer

1978-04-10

1980-03-11

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Fluid- or gas pressure-actuated

73205L, H01L 1010

Patent

active

041930541

ABSTRACT:
An air flow transducer wherein the displacement of a diaphragm by a pressure differential at the opposite sides thereof is measured in terms of unit electrical resistance. The pressure differential is provided by supplying the air to the transducer through ports, one of which is in communication with one side of the diaphragm and the other of which is in communication with the opposite side of the diaphragm, and by providing a linear flow restrictor in the latter port which resists air flow in direct proportion to any increase in the air flow to thus produce a pressure drop from one side of the diaphragm to the other which is directly proportional to the increase in flow.

REFERENCES:
patent: 2306940 (1942-12-01), Fischer
patent: 2502559 (1950-04-01), Coxon
patent: 3283283 (1966-11-01), Denner et al.
patent: 3789880 (1974-02-01), Armstrong et al.
patent: 3838598 (1974-10-01), Tompkins

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