Automatic control system design of laser interferometer

Qingjie Lu; Chunjie Li; Hao Sun; Shaohua Ren; Sen Han

doi:10.1117/12.2196430

8 October 2015 Automatic control system design of laser interferometer

Qingjie Lu, Chunjie Li, Hao Sun, Shaohua Ren, Sen Han

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 967702 (2015) https://doi.org/10.1117/12.2196430
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

There are a lot of shortcomings with traditional optical adjustment in interferometry, such as low accuracy, time-consuming, labor-intensive, uncontrollability, and bad repetitiveness, so we treat the problem by using wireless remote control system. Comparing to the traditional method, the effect of vibration and air turbulence will be avoided. In addition the system has some peculiarities of low cost, high reliability and easy operation etc. Furthermore, the switching between two charge coupled devices (CCDs) can be easily achieved with this wireless remote control system, which is used to collect different images. The wireless transmission is achieved by using Radio Frequency (RF) module and programming the controller, pulse width modulation (PWM) of direct current (DC) motor, real-time switching of relay and high-accuracy displacement control of FAULHABER motor are available. The results of verification test show that the control system has good stability with less than 5% packet loss rate, high control accuracy and millisecond response speed.

Citation Download Citation

Qingjie Lu, Chunjie Li, Hao Sun, Shaohua Ren, and Sen Han "Automatic control system design of laser interferometer", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 967702 (8 October 2015); https://doi.org/10.1117/12.2196430

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