Pneumatic switch potentiometer
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United States of America Patent
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Jun 25, 1985
Grant Date -
N/A
app pub date -
Feb 2, 1984
filing date -
Feb 2, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pneumatically actuated pressure transducer has a wiper assembly which is movable from an off position through a range of positions wherein the transducer has a varying voltage output. The pressure transducer comprises a high thermal conductivity substrate which forms a base for a potentiometer element and a resistance path coated onto the substrate. The resistance path includes a first area of low resistance material and a second area of high resistance material which meet in a chevron shaped transition zone. An insulating material coated onto the substrate defines the off position for the transducer.
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