Trapped-Energy Vibratory Gyroscopes Using Rotated Y-cut LiNbO_3
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概要
- 論文の詳細を見る
In a rotated Y-cut plate of class (3m) crystal such as LiNbO_3 and LiTaO_3, two orthogonal thickness-shear vibrations can be excited independently, by electric fields perpendicular and parallel to the plate surface. Using the trapped-energy thickness-shear vibrations, vibratory gyroscopes of easy support with no need of trimming are expected to be realized. In this paper, a trapped-energy vibratory gyroscope using a rotated Y-cut of LiNbO_3 is proposed. It is shown experimentally that by choosing appropriate electrode dimensions the resonance frequencies of the two orthogonal thickness-shear vibrations almost coincide with each other, and the energy of the thickness-shear vibrations is trapped around the electrodes. The basic characteristics of a vibratory gyroscope using a 163° rotated Y-cut LiNbO_3 plate, about 2 mm thick, is presented.
- 社団法人応用物理学会の論文
- 1998-05-30
著者
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Nakamura Kiyoshi
Department Of Electircal Communications Faculty Of Engineering Tohoku University
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Nakamura Kiyoshi
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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OHSAKI Masahiro
Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku Unive
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Ohsaki Masahiro
Department Of Electrical And Communication Engineering Graduate School Of Engineering Tohoku Univers
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Nakamura Kiyoshi
Department Of Chemistry Faculty Of Science Shinshu University
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NAKAMURA Kiyoshi
Department of Biology, Faculty of Science, Okayama University
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