OPTICAL MEASURING INSTRUMENT WITH GONIOMETER Russian patent published in 1997 - IPC

Abstract RU 2089852 C1

FIELD: instrumentation engineering, measurement of angles of slope relative to horizon or vertical. SUBSTANCE: optical measuring instrument includes glass ampule 1 in the form of clear sealed cylinder, float 3 with circular plate 4 with angle measuring scale attached to it. Plate is made in the form of ring. Difference of outer and inner radii of ring is equal to 1/8-1/10 of outer diameter of entrance pupil of eye-piece of telescope. EFFECT: enhanced measurement precision. 3 dwg

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RU 2 089 852 C1

Authors

Sokolov B.I.

Sokolov N.B.

Sokolov A.B.

Dates

1997-09-10—Published

1991-08-14—Filed