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Research on Vibration Phase Measurement Technology Based on Laser Interference Waveform Demodulation

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Computer and Communication Engineering (CCCE 2022)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1630))

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Abstract

Laser interference frequency ratio counting method is widely used in absolute vibration standard devices. However, it can only measure amplitude, and cannot get vibration phase. This paper studies a method of measuring vibration phase by using the relationship between laser interference fringes and vibration displacement of vibrostand, and gives a mathematical model of vibration phase measurement by laser interference waveform demodulation. Based on the homodyne Michelson laser interferometer, this method uses a high-speed data collector to synchronously collect laser interference signals and sensor signals, and demodulates the vibration waveform on the virtual instrument software platform, realizing the real-time measurement of vibration amplitude and phase.

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Correspondence to Sha Zhu .

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Cheng, H., Zhu, S. (2022). Research on Vibration Phase Measurement Technology Based on Laser Interference Waveform Demodulation. In: Neri, F., Du, KL., Varadarajan, V.K., Angel-Antonio, SB., Jiang, Z. (eds) Computer and Communication Engineering. CCCE 2022. Communications in Computer and Information Science, vol 1630. Springer, Cham. https://doi.org/10.1007/978-3-031-17422-3_14

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  • DOI: https://doi.org/10.1007/978-3-031-17422-3_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-17421-6

  • Online ISBN: 978-3-031-17422-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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