Pressure transducer with stress isolation for hard mounting
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United States of America Patent
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-
Jan 31, 1989
Grant Date -
N/A
app pub date -
Jun 23, 1986
filing date -
Jun 23, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure transducer has a stress isolator layer which permits the sensor to be non-resiliently mounted (hard mounted) to a mounting surface that in turn is subjected to strain. The strain of the mounting surface tends to induce undesired stress in the sensing diaphragm, and the present stress isolator layer minimizes the amount of stress that is transferred to the measuring diaphragm, to thereby reduce error. The spring preferably comprises a silicon leaf0type spring, with or without isolating slots, and is used in various combinations of diaphragms that are sensitive to pressure. The deflection of the diaphragm in response to pressure can be measured in any desired known manner such as with strain gage resistors, or through capacitive sensing.
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Cited Art Landscape
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