Time Shared Driving and Detection System for Micro Vibratory Gyroscope with Single Vibration Coil

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  • 時分割方式により実現した単一参照駆動用コイルを有するマイクロ振動型ジャイロの駆動・検出システム
  • ジブンカツ ホウシキ ニ ヨリ ジツゲン シタ タンイツ サンショウ クドウヨウ コイル オ ユウスル マイクロ シンドウガタ ジャイロ ノ クドウ ケンシュツ システム

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Abstract

We report a driving and movement detection system for a micro vibratory gyroscope with double gimbal structure. The gyroscope has two-coils on its outer and inner-gimbals and the inner-gimbal is vibrated by the electromagnetic force. Our system drives inner-coil and simultaneously detects the vibration of the inner-gimbal by time shared control. The system includes a PLL loop with an over-tone oscillator and PLD for achieving time-shared driveing/detection scheme. The system showed good characteristics for angular rate detection.

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