Automatic control of moving mirror based on phase detection in FTIR spectrometer

Aiping Li; Xianze Xu; Zhangrong Chen

doi:10.1117/12.819604

31 December 2008 Automatic control of moving mirror based on phase detection in FTIR spectrometer

Aiping Li, Xianze Xu, Zhangrong Chen

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71301U (2008) https://doi.org/10.1117/12.819604
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

This paper did a research on the uniform motion of the moving mirror in the spectrometer and the alignment with the fixed mirror. Firstly, a brief analysis is made on the factors that affect the uniform motion and the reasons of the misalignment. And then, a strategy is described to control the movement of the moving mirror that based on phase detection. Meanwhile, a detailed introduction to the strategy is presented from the aspects of the hardware design and algorithm realization. The experimental data and result shows the control system for the moving mirror has sufficient precision and timing to ensure the alignment needed by the interferometer in the FTIR spectrometer and the requirement by the moving mirror of its uniform motion as well. As one of the key techniques in the project of "Research and Development on the Fourier Transform Infrared and Laser Raman Spectrometer", one topic of the National 10th Five-year Program of Science and Technology, it will make a significant meaning in the area of precise driving and positioning, fast tracing and adjustment as well as feedback control, whether in theory or practicality.

Citation Download Citation

Aiping Li, Xianze Xu, and Zhangrong Chen "Automatic control of moving mirror based on phase detection in FTIR spectrometer", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301U (31 December 2008); https://doi.org/10.1117/12.819604

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available