Hall effect pressure transducer

Details Hall effect pressure transducer Hall effect pressure transducer

1988-10-17

1990-06-26

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

338 32H, G01L 708, G01L 910

Patent

active

049361481

ABSTRACT:
A Hall effect pressure transducer incorporates a pressure-deflection diaphragm which has patterned depressions therein to enhance linearity of response; an O-ring diaphragm seal which seals the diaphragm against pressure leaks without affecting the linearity of response; a pair of magnets, preferably rectangular, oriented with their North-South axes oppositely parallel, and oriented transverse to the deflection axis of the diaphragm to provide a uniform magnetic field gradient and sensitive, accurate, linear response of the transducer to either positive or negative pressure-induced deflections of the diaphragm.

REFERENCES:
patent: 3575054 (1971-04-01), Glista
patent: 4254395 (1981-03-01), Herden
patent: 4326419 (1982-04-01), Herden
patent: 4340877 (1982-07-01), Herden
patent: 4352085 (1982-09-01), Herden
patent: 4484173 (1984-11-01), Everett
patent: 4487074 (1984-12-01), Herden
patent: 4667514 (1987-05-01), Baer

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