Pressure sensor with dual chamber cover and corrugated membrane

Details Pressure sensor with dual chamber cover and corrugated membrane Pressure sensor with dual chamber cover and corrugated membrane

2011-04-12

2011-04-12

Caputo, Lisa M (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

Reexamination Certificate

active

07921725

ABSTRACT:
A pressure sensor assembly for fitting within the valve stem of a vehicle tire comprises a substrate assembly defining a plurality of holes; a pressure sensor and a temperature compensation sensor mounted to the substrate assembly, each sensor including a corrugated deflectable membrane defining a first chamber and a cap mounted to the membrane to form a second chamber; and a cover configured to engage with the pressure sensor and the temperature compensation sensor to define an active chamber and a reference chamber respectively, the active chamber being exposed to tire pressure when the pressure sensor assembly is fitted within the valve stem whereas the reference chamber is sealed from tire pressure.

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