FIELD: measurement equipment.
SUBSTANCE: receiving circuit is made as double-channel and comprises an optical system including two rhombus-prisms and two diverting wedges, and a receiving projection system including a cylindrical lens and a spherical lens, and as a photodetector a two-coordinate CCD-matrix is used, the output of which is connected to a PC or a controller.
EFFECT: increased absolute and relative accuracy of measurements.
2 dwg
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