Hall generator pressure transducer

Details Hall generator pressure transducer Hall generator pressure transducer

1980-10-27

1982-07-20

Albritton, C. L.

Electrical resistors

Resistance value responsive to a condition

Fluid- or gas pressure-actuated

338 32H, H01L 1010

Patent

active

043408770

ABSTRACT:
A corrugated membrane cavity has a flexible membrane, the center of which, in response to changes of pressure, varies of spacing between a magnet, for example carried on the membrane, and a Hall generator integrated circuit, in which the Hall generator is mounted coaxially with the polarity axis of the magnet and the flexible membrane. Another magnet on the other side of the Hall-IC faces the first magnet, so that like poles are facing each other, and so that the Hall-IC operates in a region of the induction field that is symmetrical with respect to the plane of zero induction that exists midway between the magnet. This working range makes possible a relatively high and linear variation of output voltge of the Hall-IC in response to variation of the magnetic induction which is particularly useful for pressure sensors for installation in the air intake duct of a motor vehicle engine.

REFERENCES:
patent: 3761958 (1943-09-01), Nishira
patent: 4156820 (1979-05-01), Fukuda et al.
patent: 4218626 (1980-08-01), Fukuda et al.
patent: 4254395 (1981-03-01), Herden

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