Clinometer

Details Clinometer Clinometer

1992-02-25

1994-06-07

Cuchlinski, Jr., William

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33379, G01C 924

Patent

active

053178106

ABSTRACT:
A clinometer provided with a level vial filled with a transparent liquid and a bubble, and a projector for irradiating the level vial. The clinometer includes center calculating means for calculating the center of a bubble from light receiving signals of first and second line sensors and inclination calculating means for calculating an inclination of the level vial from the center calculated by the center calculating means, wherein the first and second line sensors which receive light passing through the level vial are crossed at right angles and located so that the crossed point exists on the central axis of the level vial.

REFERENCES:
patent: 4861981 (1989-08-01), Winiger
patent: 5101570 (1992-04-01), Shimura
English translation of Japanese Patent Document No. 2-42310, Feb. 13, 1990 by Shimura.

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