Inclinometer

Details Inclinometer Inclinometer

1979-01-24

1981-03-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250577, G01C 900

Patent

active

042543347

ABSTRACT:
An inclinometer is proposed wherein the degree and the orientation of the inclination of an apparatus, such as a vehicle or crane, relative to an artificial horizon can be measured and monitored by means of light barriers. This inclinometer comprises an annular vessel having light-transmissive walls and a hollow ring cover which partially embraces the annular vessel. The inner walls and outer walls of the hollow ring cover are provided with light sources and light receivers which are arranged opposite one another in pairs so as to form light barriers which penetrate the annular vessel and can be interrupted by a liquid contained in such vessel.

REFERENCES:
patent: 3388258 (1968-06-01), Grant
patent: 3817625 (1974-06-01), Jordan
patent: 3863067 (1975-01-01), Gooley
patent: 4110609 (1978-08-01), Beer

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