Modeling and Optimal Design for a High Stability 2D Optoelectronic Angle Sensor

Sensors

Liying Liu¹  Peng Xu¹  Ruijun Li¹  Hongli Li¹  Yongqing Wei¹  Zhenying Cheng¹  Kuang-Chao Fan¹ 

[1] School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei 230009, China;

关键词: angle sensor;    error model;    drift;    optimal design;    stability;   

DOI  :  10.3390/s19204409

来源: DOAJ

【 摘 要 】

The structural deformations caused by environmental changes in temperature, vibration, and other factors are harmful to the stability of high precision measurement equipment. The stability and optimal design method of a 2D optoelectronic angle sensor have been investigated in this study. The drift caused by structural deformations of the angle sensor has been studied and a drift error model has been achieved. Key components sensitive to thermal and vibrational effects were identified by error sensitivity analysis and simulation. The mounts of key components were analyzed using finite element analysis software and optimized based on the concept of symmetric structures. Stability experiments for the original and optimized angle sensors have been carried out for contrast. As a result, the stability of the optimized angle sensor has been improved by more than 63%. It is verified that the modeling and optimal design method is effective and low-cost, which can also be applied to improve the stability of other sensors with much more complex principles and structures.

【 授权许可】

Unknown