Electronic inclination gauge with acceleration compensation

Details Electronic inclination gauge with acceleration compensation Electronic inclination gauge with acceleration compensation

1984-05-07

1985-07-30

Little, Willis

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33356, 73505, 73510, G01C 906

Patent

active

045313008

ABSTRACT:
An apparatus for providing dynamic measurements of the grade of a road bed provides correction for accelerations of the carrying vehicle. A tilt transducer, responsive to both the angle and sense of inclination and to accelerations of the vehicle is used to measure the angle of displacement. The time rate of change of velocity signal derived from the motion of the vehicle is used to provide a signal corresponding to the vehicular acceleration. The acceleration signal level is adjusted to cancel acceleration sensed by the transducer, thereby providing an output reflecting the true angular grade reading.

REFERENCES:
patent: 3277840 (1966-10-01), Yao-Tzu Li
patent: 3871235 (1975-03-01), Anderson
patent: 3984918 (1976-10-01), Chaney
patent: 4085375 (1978-04-01), Galuschak et al.
patent: 4246790 (1981-01-01), Nichols
patent: 4393709 (1983-07-01), Harumatsu et al.

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