Inclination angle metering apparatus

Details Inclination angle metering apparatus Inclination angle metering apparatus

1994-05-04

1995-02-21

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Photodetection of inclination from level or vertical

33366, 33377, 356148, 356219, G01B 1126, G01C 906, G01C 110

Patent

active

053921127

ABSTRACT:
An inclination angle metering apparatus is arranged such that a beam from a light source is split into two beams by a half-mirror provided in a light path between the light source and the surface of a liquid. One beam is reflected by the liquid surface falls on a line sensor, and the other beam falls on the line sensor without reflected by the liquid surface. When a housing and the liquid are relatively inclined, an incident position of one beam changes on the line sensor, whereas an incident position of the other beam does not change. An inclination angle to the liquid surface is determined based on the incident position of one beam with respect to the incident position of the other beam.

REFERENCES:
patent: 2968228 (1961-01-01), Merritt
patent: 3667849 (1972-06-01), Appler et al.
patent: 3741656 (1973-06-01), Shapiro
patent: 3960077 (1976-06-01), Aylett
patent: 4136955 (1979-01-01), Aeschlimann et al.
patent: 5227862 (1993-07-01), Oshida et al.

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