Pressure monitoring apparatus having a Hall-effect detector
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United States of America Patent
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May 24, 1988
Grant Date -
N/A
app pub date -
Oct 28, 1985
filing date -
Oct 28, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pressure responsive apparatus having a Hall-effect detector is described. The apparatus preferably includes a pressure gauge having a Bourdon tube responsive to an external pressure. The Bourdon tube has mounted thereto a pair of magnets supported on, or attached to, an end thereof for generating a low power, magnetic flux field. The Hall-effect detector is mounted in proximity to the pair of magnets and generates an output voltage having values corresponding to movement of the magnets with respect to the detector. A processing circuit receives the output voltage from the Hall-effect detector, and in response thereto generates a plurality of output signals proportional to the sensed pressure variations in the Bourdon tube.
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