Acceleration sensor with differential capacitance

Details Acceleration sensor with differential capacitance Acceleration sensor with differential capacitance

1990-05-31

1992-03-03

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

G01P 15125

Patent

active

050921711

ABSTRACT:
In an acceleration sensor, in particular for automobiles, at least two electrodes which are surrounded by a dielectric are arranged, substantially parallel to each other, in a housing and immersed over part of their length in an electrically conductive liquid. Flip-flops output pulses having durations based on capacitance of the sensor. Output signals of the flip-flops are combined arithmetically.

REFERENCES:
patent: 2354964 (1944-08-01), Ostermann et al.
patent: 4010650 (1977-03-01), Piatkowski
patent: 4624140 (1986-11-01), Ekchian et al.
patent: 4642555 (1987-02-01), Swartz et al.

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