Strain gauge type pressure sensing
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United States of America Patent
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Oct 5, 2021
Grant Date -
Feb 18, 2021
app pub date -
Aug 16, 2019
filing date -
Aug 16, 2019
priority date (Note) -
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Abstract
A pressure sensor apparatus for strain gauge pressure sensing includes a plurality of strain gauges including a first strain gauge and a second strain gauge. The pressure sensor apparatus also includes a diaphragm coupled between the plurality of strain gauges and an object configured to apply pressure to the diaphragm. The diaphragm has a first portion and a second portion. The first portion has a first thickness between the object and the first strain gauge. The second portion has a second thickness between the object and the second strain gauge. In an uncompressed state, the second thickness is greater than the first thickness.
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