Design of PGC Demodulation Circuit Using for Sagnac Interferometer

WU Bin; CAI Dong-sheng; HE Cun-fu; HANG Li-jun

doi:10.3969/j.issn.0254-0037.2008.10.002

WU Bin, CAI Dong-sheng, HE Cun-fu, HANG Li-jun. Design of PGC Demodulation Circuit Using for Sagnac Interferometer[J]. Journal of Beijing University of Technology, 2008, 34(10): 1015-1020. DOI: 10.3969/j.issn.0254-0037.2008.10.002

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Design of PGC Demodulation Circuit Using for Sagnac Interferometer

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In this article,PGC arithmetic at length was discussed and then the hardware system basing on PGC technology was designed.The system has been applied for a new pipeline leakage detection system based on Sagnac interferometer to demodulate interference signal phase.It is proved that the circuit can demodulate leakage signal effectively,and leaking point is located accurately.

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Design of PGC Demodulation Circuit Using for Sagnac Interferometer

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