Sensitive tiltmeter

Details Sensitive tiltmeter Sensitive tiltmeter

1975-03-19

1976-12-21

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33365, 33366, G01C 916

Patent

active

039979768

ABSTRACT:
A normal pendulum is coupled to an inverted pendulum to provide a composite conjugate pendulum having an effective length much longer than the actual physical lengths. The motion of the pendulum is sensed by a capacitive transducer and pivot friction is minimized by a two-bar two-strap suspension system.

REFERENCES:
patent: 1667840 (1928-05-01), Colvin
patent: 2577061 (1951-12-01), Woolson et al.
patent: 2779231 (1957-01-01), Drodofsky
patent: 3059343 (1962-10-01), Kermode
patent: 3206151 (1965-09-01), Lillestrand

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