Attitude indicator device utilizing capacitance measurement

Details Attitude indicator device utilizing capacitance measurement Attitude indicator device utilizing capacitance measurement

1991-03-06

1992-09-22

Ng, Jin F.

Communications: electrical

Condition responsive indicating system

Specific condition

340573, 340689, 33366, 200DIG2, 128782, G08B 2100

Patent

active

051501040

ABSTRACT:
An attitude sensor device for sensing deviations from a reference orientation which includes a sensor cup having a capacitor and a damped dielectric fluid with a bubble disposed between the electrodes of the capacitor. When the sensor cup is tilted, the bubble is displaced within the damped dielectric fluid and a capacitance change results. A controller circuit detects this capacitance change and outputs a warning signal to an LED and/or a speaker. In an alternate embodiment, the attitude sensor device is mounted to the inner housing of a gyroscope, which is insensitive to movement in two dimensions, thereby allowing the sensing of deviations of rotational movement.

REFERENCES:
patent: 2713726 (1955-07-01), Dixson
patent: 2745091 (1956-05-01), Leffler
patent: 3096591 (1963-07-01), Higgins, Jr.
patent: 4283798 (1981-08-01), Kuehn
patent: 4422243 (1983-12-01), Brunson
patent: 4521973 (1985-06-01), Wiklund
patent: 4651128 (1987-03-01), Kolb
patent: 4800542 (1989-01-01), Franklin
patent: 4841285 (1989-06-01), Laut

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