Electronic angle indicator

Details Electronic angle indicator Electronic angle indicator

1983-06-29

1985-12-10

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

340689, G01C 906

Patent

active

045570566

ABSTRACT:
An electronic angle indicator providing a digital indication for a desired angle comprises a pivotally suspended gravity responding pendulum retaining a ring magnet, a reference angle dial retaining a ring magnet and two magnetic field sensors, one for sensing magnetic field change of said pendulum and the other one for sensing magnetic field change of said reference angle dial. The output of said pendulum magnetic field sensor is compared with the output of said reference angle dial magnetic field sensor and causes the indicators display attainment of a desired angle orientation selected by said reference angle dial, or greater or lesser angle than the angle orientation selected by said reference angle dial.

REFERENCES:
patent: 3805398 (1974-04-01), Russell et al.
patent: 3935643 (1976-02-01), Russell et al.
patent: 4094073 (1978-06-01), Parra
patent: 4375727 (1983-03-01), McAdam, Jr. et al.

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