Low pressure transducer using metal foil diaphragm

Details Low pressure transducer using metal foil diaphragm Low pressure transducer using metal foil diaphragm

1990-01-23

1991-06-04

Orsino, Joseph A.

Measuring and testing

Fluid pressure gauge

Diaphragm

73724, 361283, G01L 912

Patent

active

050203770

ABSTRACT:
A low pressure transducer is disclosed which utilizes a stainless steel foil diaphragm. An electrically conductive layer is deposited onto a non-conductive planar disk to form one plate of a capacitor. An epoxy ring is silk-screened onto the non-conductive plate to form an insulative washer between the stainless steel foil and the conductive layer on the non-conductive plate. A stainless steel ring is placed on top of the stainless steel foil and pressed down toward the non-conductive plate until the capacitance formed by the conductive layer screened onto the non-conductive plate and the stainless steel foil diaphragm reaches a predetermined level.

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