Calibration method and device for three-optical-axis return and air bath linear displacement laser interferometer
A laser interferometer and laser interference technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of large Abbe error, unequal optical path, inconsistent influence, etc., and achieve the effect of small Abbe error
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[0029] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] A three optical axis return and air bath linear displacement laser interferometer calibration device, including a standard laser interferometer laser 1, three receivers 7, 8, 9 arranged at positions capable of receiving interference signals from the standard laser interferometer, and wires The three receivers 7, 8, 9 are respectively connected to the standard laser interferometer signal processing system 10; on the output optical path of the standard laser interferometer laser 1, an intermediate through hole 14 is arranged to allow the calibrated laser interferometer measurement beam 13 to pass through The passed three-axis hollow standard laser interference mirror group 2; the guide rail 20 is arranged on one side of the three-axis hollow standard laser interference mirror group 2, and the moving table 19 is fitted on the gu...
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