NDLI: Temperature compensation for the photoelastic modulator with a digital phase-locked loop

Content Provider	IEEE Xplore Digital Library
Author	Yan-chao Wang Dong-e Zhao Zhi-bin Wang You-hua Chen
Copyright Year	2013
Description	Author affiliation: Eng. Technol. Res. Center, Shanxi Province for Opto-Electron. Inf. & Instrum., Taiyuan, China (Yan-chao Wang; Zhi-bin Wang; You-hua Chen) \|\| Sch. of Inf. & Commun. Eng., North Univ. of China, Taiyuan, China (Dong-e Zhao)
Abstract	For temperature drift in the ultra-high speed photoelastic modulation interferometer, a control model with temperature compensation is presented including the voltage and phase compensation. First, according to the similar and modeling theory, an equivalent circuit of mechanical properties of the ultra-high speed photoelastic modulation interferometer is established. The impact on its resonance frequency is analyzed which is caused by temperature drift. And a mathematical model which contains drive voltage, frequency and resonance frequency is set up. Then, a design method including the voltage and phase compensation is given for optical path difference deviation control, which merges the digital phase lock loop and the phase compensation. Finally, the test between a drive control system including voltage and phase compensation and a traditional drive control system is executed, using a laser Doppler vibrometer to record the amount of change of optical path difference within 3 hours. Results show that the optical path difference deviation caused by temperature drift in long terms is reduced by about 50%.
Sponsorship	IEEE Circuits Syst. Soc.
Starting Page	1686
Ending Page	1690
File Size	359153
Page Count	5
File Format	PDF
ISBN	9781467347143
ISSN	21579563
DOI	10.1109/ICNC.2013.6818253
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical interferometry Frequency modulation photoelastic modulator frequency tracking Resonant frequency digital phase-locked loop temperature compensation Temperature control Voltage control
Content Type	Text
Resource Type	Article

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