Time-Domain Sagnac Phase Reading in Open-Loop Fiber Optic Gyroscopes

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概要

• 論文の詳細を見る

• Time-domain characteristics of the signal of an open-loop fiber optic gyroscope were analyzed. The waveform moments of the gyroscope signal were dependent upon the rotation-induced Sagnac phase, just as the signal frequency spectra are. The peak positions of the time signal also varied with the supplied rotation, and the Sagnac phase could be read out, with optimum sensitivity, from the intervals between peaks.To demonstrate the time-domain measurement technique, the gyroscope signal was transferred to lower frequencies and the signal period was lengthened. This equivalent-time scheme lowered the operational speed requirement on the signal processing electronics and improved measurement resolution. key words: fiber optic gyroscope, optical phase modulation,time-domain analysis, optical interferometry

• 社団法人電子情報通信学会の論文
• 1996-11-25

著者

• Oho Shigeru

  Hitachi Research Laboratory, Hitachi, Ltd.

• Sonobe Hisao

  Hitachi Research Laboratory, Hitachi, Ltd.

• Kajioka Hiroshi

  Hitachi Cable, Ltd.

• Oho Shigeru

  Hitachi Research Laboratory Hitachi Ltd.

• Sonobe Hisao

  Hitachi Research Laboratory Hitachi Ltd.

• Kajioka Hiroshi

  Hitachi Cable Ltd

関連論文

• A Down Sampling Technique for Open-Loop Fiber Optic Gyroscopes and Its Implementation with a Single-Chip Digital Signal Processor
• Time-Domain Sagnac Phase Reading in Open-Loop Fiber Optic Gyroscopes

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