Stop mechanism for a diaphragm pressure transducer

Details Stop mechanism for a diaphragm pressure transducer Stop mechanism for a diaphragm pressure transducer

1992-06-02

1994-05-03

Chilcot, Jr., Richard E.

Measuring and testing

Fluid pressure gauge

Diaphragm

73706, 73717, 73723, G01L 902

Patent

active

053076842

ABSTRACT:
A pressure transducer for measuring the pressure of a fluid comprising a housing having a cavity. A diaphragm capable of displacement is located within the cavity, dividing the cavity into a first and second chamber. The first chamber is capable of receiving a fluid to be measured, typically a liquid or a gas, while the second chamber contains a liquid such as a silicon oil. The second chamber also contains a gas and means for measuring the displacement of the diaphragm. Upon pressure being exerted against the diaphragm from the fluid, the diaphragm displaces against the liquid and gas, compressing and dissolving the gas as pressure is increased. Displacement of the diaphragm is measured by a measuring device, such as a strain gauge. When the gas is fully dissolved, further movement of the diaphragm is limited by the compressibility of the liquid.

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patent: 5209107 (1993-05-01), Grudzien et al.
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