The application of grating length measurement in glass gauge measurement
Aiming at the problem of large measurement deviation in traditional glass measuring methods,a grating length measurement method is proposed to measure glass measuring instruments.Taking the cali-bration device of a scale as an example,the position of the directional light path is set,and the capacity marking parameters of the gauge are calculated based on the light path position.Based on this parameter,a grating length measurement is used to establish an error correction model.Combined with the four quad-rant position detector,the surface of the photodetector is divided,and the dead path error is calculated through the light path layout and generated schematic diagram.The capacity is calibrated according to the error,Based on the calibrated capacity parameters,use an autocollimator to measure the straightness of the axis and obtain the measured indication,thus completing the measurement of the glass gauge.The ex-perimental results show that using the glass measuring method designed in this article,the measurement deviation is small and the application effect is good.
grating length measurementglass gauge measurementfour quadrant positionlight path layoutidentify the position of the optical pathgrating length measuring machine
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