Dynamic vertical angle sensor

Details Dynamic vertical angle sensor Dynamic vertical angle sensor

1974-08-30

1976-03-23

Aegerter, Richard E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33391, G01C 906

Patent

active

039451283

ABSTRACT:
A dynamic vertical angle sensor operable on a vehicle that isolates the output device from the vehicle movement in that the rotor of the output data device is not directly coupled to the sensor mounting frame. The output rotor is driven by a low pass servo that is slaved to a level sensor, which in itself is driven by the same servo until it is nulled. The level sensor which may be a pendulum, is mounted free from the output device so as to rotate independently therefrom, thus allowing the error signal to be picked off of the pendulum mounting and applied to the low pass servo system. Because a low pass filter is in series with the servo drive, high frequency disturbances are greatly attenuated in the output device, to effectively provide a DC average angle signal that is required, for example, in a tank system, rather than instantaneous values.

REFERENCES:
patent: 3135900 (1964-06-01), Smith
patent: 3184662 (1965-05-01), Wallace
patent: 3835546 (1974-09-01), Jaquet

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