Apparatus for determining lateral displacements of objects

Details Apparatus for determining lateral displacements of objects Apparatus for determining lateral displacements of objects

G - Physics

01

C

G01C 15/00 (2006.01) G01B 11/16 (2006.01) G01D 5/26 (2006.01) G01S 5/16 (2006.01)

Patent

CA 2086838

Abstract The apparatus for determining lateral displacements of objects comprises the optically interconnected laser source (1) of collimated radiation, converter (3) of collimated laser radiation made so as to ensure formation of two beams (B, O) of collimated laser radiation at a preset angle (.theta.) of their convergence and a preset frequency shifts between said beams (B, O), two beam splitters (4, 6), laser radiation converter (5) made so as to ensure formation of an orthogonally-disposed interference of two pairs (b, O', B", O") of converging beams (B,O) of collimated laser radiation arranged in orthogonal planes and orthogonally-polarized in pairs, two radiation analyzers of collimated laser radiation are perpendicular, a reference photodetector (12) and photodetectors (8, 13) electrically connected with the processing unit (10). In a particular case the frequency shift between the beams (B,O) is equal to zero and the photodetectors (8, 12, 13) are of the scanning type.

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