Differential pressure transducer
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United States of America Patent
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-
Jun 2, 1987
Grant Date -
N/A
app pub date -
Jul 1, 1985
filing date -
Jul 1, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a differential pressure transducer having isolation diaphragms on opposite sides of a sensing diaphragm, the isolation diaphragms are made highly compliant, are radially prestressed and are bowed outwardly relative to closely spaced backup surfaces by oil pressure. Using very small interior cavities and a substantially stiffer sensing diaphragm differential process pressures induce linear deflection of the sensing diaphragm.
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