Pressure sensor

Details Pressure sensor Pressure sensor

2006-08-22

2006-08-22

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

Electrical

C361S283100

Reexamination Certificate

active

07093495

ABSTRACT:
A pressure sensor for sensing a pressure level of a medium. The pressure sensor includes a rigid substrate having a medium contacting side and a pressure sensitive resistor mounted on the medium contacting side. The resistor exhibits a change in resistance in response to pressure changes on the resistor above a predetermined threshold. Other embodiments of the invention are shown using a wheatstone bridge with pressure sensitive resistors and resistors that are insensitive to pressure changes.

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The electrical response of thick-film resistors to hydrostatic pressure and uniaxial stress between 77 and 535 K, Nigel Fawcett, Martyn Hill, Sensors and Actuators Journal, vol. 78, pp. 114-119.

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