Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2006-01-31
2006-01-31
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S661000, C324S682000, C361S283400, C073S862626
Reexamination Certificate
active
06992492
ABSTRACT:
A capacitive sensor is disclosed that includes a variable capacitor transducer that varies its capacitance with changes in an environmental parameter. The present invention is adapted to measure any linear parameter such as pressure, force, or distance. The sensor of the present invention is compact, inexpensive to make, and easily fabricated using commonly available components. Furthermore, it is not susceptible to errors caused by vibration, acceleration, and its orientation to the earth's gravitational field. The output of the capacitive sensor does not substantially drift with changes in temperature.
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Burdick Kenneth
Lia Raymond A.
Vivenzio Robert L.
Deb Anjan
Dole Timothy J.
Wall Marjama & Bilinski
Welch Allyn Inc.
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