Directional two-axis differential optical inclinometer

Details Directional two-axis differential optical inclinometer Directional two-axis differential optical inclinometer

1980-02-07

1981-12-29

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 906, G01C 924

Patent

active

043075169

ABSTRACT:
A directional two-axis differential optical inclinometer which includes lt sources and optical detectors in two different systems for determining angle change in a test table and the direction of change from the horizontal plane.

REFERENCES:
patent: 2547310 (1951-04-01), Flint
patent: 2974532 (1961-03-01), Goshen et al.
patent: 3464276 (1969-09-01), Liebert
patent: 3741656 (1973-06-01), Shapiro
patent: 4024823 (1977-05-01), Ward et al.

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