A circuit processing method for restraining DC drift for Interferometry of micro vibration measurement

Hao Hou; Xuanze Wang; Zhongsheng Zhai

doi:10.1117/12.2211894

26 January 2016 A circuit processing method for restraining DC drift for Interferometry of micro vibration measurement

Hao Hou, Xuanze Wang, Zhongsheng Zhai

Proceedings Volume 9903, Seventh International Symposium on Precision Mechanical Measurements; 99031B (2016) https://doi.org/10.1117/12.2211894
Event: Seventh International Symposium on Precision Mechanical Measurements, 2015, Xia'men, China

Abstract

A circuit processing method is present to restrain DC drift after analyzing the traditional signal processing method of interferometry for micro vibration measurement. At first, the circuit diagram is designed and its mathematical model is built, then the theoretical equations of the output signal are derived with the practical parameters. By using SIMULINK simulation, the process for restraining DC drift is present on the conditions of the variations of background intensity. The validity of feedback circuit was verified through analyzing the real experiment data. Theoretical predictions match simulation results, showing that this method effectively restrains DC drift for interferometry of micro vibration measurement and it greatly improves the system’s stability.

Citation Download Citation

Hao Hou, Xuanze Wang, and Zhongsheng Zhai "A circuit processing method for restraining DC drift for Interferometry of micro vibration measurement", Proc. SPIE 9903, Seventh International Symposium on Precision Mechanical Measurements, 99031B (26 January 2016); https://doi.org/10.1117/12.2211894

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