Semiconductor Optoelectronics, Volume. 41, Issue 4, 578(2020)
Optical Fiber Sensor Adjustment System for Automated Assembly Process
In order to reduce assembly errors and solve problems such as forced assembly and incomplete assembly during the automatic assembly process, the optical fiber sensing calibration system was designed. The system consists of a fiberoptic sensor array, a demodulation module, and a tuning control mechanism. A solution model for strain distribution was proposed, and the function relationship between wavelength and position deviation was deduced. The distribution characteristics of the strain sensitive area of the workpiece were analyzed by simulation, and the mapping relationship between strain and position error was quantified. In the experiment, adjustable force structure was used to calibrate the system strain monitoring data, and visual measurement was used to calibrate the system position deviation. The experimental results show that the position deviation has a linear mapping relationship with the wavelength change. It is feasible to invert the deviation of the assembly position by the wavelength. Compared with the standard value of visual measurement, the average relative error of the position deviation of the system is 8.6%. The strain field of the workpiece can be inverted by this system in real time.
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MENG Xiangqiu, YU Jinzhao, WANG Jie. Optical Fiber Sensor Adjustment System for Automated Assembly Process[J]. Semiconductor Optoelectronics, 2020, 41(4): 578
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Received: Apr. 18, 2020
Accepted: --
Published Online: Aug. 18, 2020
The Author Email: MENG Xiangqiu (mengxiangqiunuc@sina.com)