Pressure responsive switch

Details Pressure responsive switch Pressure responsive switch

1986-12-04

1988-07-26

Tolin, G. P.

Measuring and testing

Fluid pressure gauge

Diaphragm

340626, 92 6D, 324208, 200 83J, 200 83W, G01L 910

Patent

active

047592222

ABSTRACT:
A pressure responsive switch including a case having a pressure inlet and an orifice plate, an amorphous diaphragm and a ferrite core arranged in said case, said ferrite core having a pick-up coil housed therein, in which a pressure introduced into the case acts through the orifice plate against a surface of the amorphous diaphragm and a mechanical deformation of said amorphous diaphragm caused by said pressure is detected as a variation of electrical signal by means of the pick-up coil. The characteristic feature resides in that said orifice plate has a larger area at its side facing the ferrite core than at its opposite side facing the pressure inlet.

REFERENCES:
patent: 3090848 (1963-05-01), Scholz
patent: 3154652 (1964-10-01), Gilman
patent: 3393612 (1968-07-01), Gorgens
patent: 4227171 (1980-10-01), Masuda
patent: 4395916 (1983-08-01), Martin

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