Spectroscopy and Spectral Analysis, Volume. 33, Issue 5, 1429(2013)

Temperature Compensation Strategy and Implementation for Photoelectric Modulation Interferometer with Large Optical Path Difference

WANG Yan-chao1、*, WANG Zhi-bin1,2, ZHANG Ji-long1,2, and CHEN You-hua1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    For temperature drift in hypervelocity photoelectric modulation interferometer, a control model of temperature compensation is presented including voltage and phase compensation. First, according to the similar and modeling theory, an equivalent circuit model of mechanical properties of hypervelocity photoelectric modulation interferometer was established, the impact of temperature drift on its resonance frequency was analyzed, a mathematical model was set up, which contains drive voltage, frequency and resonance frequency, and the control method was determined for high optical path difference to get steady. Then, a digital method including voltage and phase compensation is given for optical path difference deviation control, which merges the DPLL and program of voltage and phase compensation. Finally, the control method was tested through experiment system. A test between drive control system including voltage and phase compensation and traditional drive control system was executed, using a laser doppler vibrometer to record the amount of change in optical path difference within 3 hours. Results show that the optical path difference deviation caused by temperature drift in long term is reduced by about 50%.

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    WANG Yan-chao, WANG Zhi-bin, ZHANG Ji-long, CHEN You-hua. Temperature Compensation Strategy and Implementation for Photoelectric Modulation Interferometer with Large Optical Path Difference[J]. Spectroscopy and Spectral Analysis, 2013, 33(5): 1429

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    Paper Information

    Received: Oct. 10, 2012

    Accepted: --

    Published Online: May. 21, 2013

    The Author Email: Yan-chao WANG (wychgfs@yahoo.com.cn)

    DOI:10.3964/j.issn.1000-0593(2013)05-1429-04

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