Vibratory Gyro-Sensor Using Vertically Set Quartz Crystal Trident-Type Tuning Fork Resonator
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概要
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In this study we deal with a new type of vibratory gyro-sensor using a vertically set quartz crystal trident-type tuning fork resonator. The sensor is made of X-cut quartz crystal wafer formed by rotating 2° about the X-axis, applying the wire saw cutting method. The slits that form three arms are cut along the Y-axis direction. In such a trident-type tuning fork resonator, two resonance vibration modes are used: one has vibrational displacement in the vertical direction (X-axis) of the tuning fork plane and the other has that in the horizontal direction (Z'-axis). When an angular rate (Ω_Y') around the Y'-axis is applied to the trident-type tuning fork gyro-sensor vibrating in the V-MODE, Coriolis forces, due to the Ω_Y', are applied or the three arms in the X'-axis direction and the H-MODE vibration is induced. Therefore, the angular rate (Ω_Y') can be determined by detecting the signals of H-MODE vibration, The experimental results have proved that the vibratory gyro-sensor that uses such a quartz crystal tuning fork resonator has good characteristics.
- 社団法人応用物理学会の論文
- 1999-05-30
著者
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OHNISHI Kazumasa
Magnetic Devices Division, Alps Electric Co., Ltd.
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Ohnishi Kazumasa
Magnetic Devices Division Alps Electric Co. Ltd.
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Ohnishi Kazumasa
Magnetic Devices Division Alps Electric Co.. Ltd.
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SHIRATORI Norihiko
Human Sensing and Functional Engineering, Graduate School of Engineering, Yamagata University
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TOMIKAWA Yoshiro
Human Sensing and Functional Engineering, Graduate School of Engineering, Yamagata University
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Shiratori N
Human Sensing And Functional Engineering Graduate School Of Engineering Yamagata University
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- Vibratory Gyro-Sensor Using Vertically Set Quartz Crystal Trident-Type Tuning Fork Resonator