Research on automatic calibration system and measurement method of high precision photoelectric encoder

Fangfang Liu; Yu Ren; Feng Zhang

doi:10.1117/12.2616525

8 July 2022 Research on automatic calibration system and measurement method of high precision photoelectric encoder

Fangfang Liu, Yu Ren, Feng Zhang

Proceedings Volume 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 122820G (2022) https://doi.org/10.1117/12.2616525
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

High precision photoelectric angle encoder is a key component of intelligent angle measuring with strategic significance. A special fixture and adjustment measurement method is proposed, which can effectively solve many problems such as eccentricity, tower difference error and rotation interference caused by the direct fixation of rotating shaft (mover) and driving shaft during measurement. An automatic calibration system is also setup, which can realize many measurement schemes, such as direct calibration of turntable, polyhedral prism calibration and permutation comparison calibration. The measurement accuracy of the system is verified by comparison experiments and repeatability experiments. The measurement uncertainty of the optimal angular division error can reach 0.15 "(k = 2).

Citation Download Citation

Fangfang Liu, Yu Ren, and Feng Zhang "Research on automatic calibration system and measurement method of high precision photoelectric encoder", Proc. SPIE 12282, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 122820G (8 July 2022); https://doi.org/10.1117/12.2616525

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