Tilt angle detection device

Details Tilt angle detection device Tilt angle detection device

1985-10-01

1986-12-16

Stearns, Richard R.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33379, G01C 906, G01C 926

Patent

active

046286128

ABSTRACT:
A level detector comprising a container holding two fluids. Four capacitors are formed between four electrodes disposed on one side of the container cooperating with an opposing common electrode. Two of the capacitors have a capacitance value influenced by the position of one of the fluids in the container (related to container tilt) but in inverse relationships. A third capacitor is influenced by the dielectric value of the two fluids but in a manner independent of the tilt angle of the container. The fourth capacitor has a capacitance value influenced only by the dielectric constant of one of the two fluids. Based on the four capacitance values, circuitry is provided for generating a signal relating to the angle of the container.

REFERENCES:
patent: 3096591 (1963-07-01), Higgins, Jr. et al.
patent: 3497950 (1970-03-01), Squire et al.
patent: 4077132 (1978-03-01), Erickson
patent: 4536967 (1985-08-01), Beitzer

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