Presentation 1998/12/18
Servo Accelerometer Using Piezoelectric Bimorph Actuator of LiNbO_3 Single Crystal
Hideki Yokoyama, Atsushi Yamamoto, Subaru Kudo, Noboru Wakatsuki,
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Abstract(in English) The potential benefits of piezoelectric bimorph actuator are their simplified structure, faster response, and relatively large displacement. A LiNbO_3 crystal plate is produced in oppositely-polarized layers with heated slightly below the Curie temperature, and the LiNbO_3 bimorph can show no hysteresis and no creep. We study the actuator of the oppositely-polarized 140° rotated Y plate. Its size is 30×10×0.2(mm). The fundamental characteristics of the actuator were electrically and optically measured and analyzed by FEM and equivalent circuit model. For the servo accelerometer, the additional mass, the integrated displacement sensor and the feedback circuit were examined to increase the sensitivity.
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Keyword(in English) LiNbO_3 / Piezoelectric Actuator / Servo Accelerometer
Paper # EMD98-78
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Committee EMD
Conference Date 1998/12/18(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Servo Accelerometer Using Piezoelectric Bimorph Actuator of LiNbO_3 Single Crystal
Sub Title (in English)
Keyword(1) LiNbO_3
Keyword(2) Piezoelectric Actuator
Keyword(3) Servo Accelerometer
1st Author's Name Hideki Yokoyama
1st Author's Affiliation Department of Electronics and Materials, Faculty of science and Engineering, Ishinomaki-Senshu University()
2nd Author's Name Atsushi Yamamoto
2nd Author's Affiliation Department of Electronics and Materials, Faculty of science and Engineering, Ishinomaki-Senshu University
3rd Author's Name Subaru Kudo
3rd Author's Affiliation Department of Electronics and Materials, Faculty of science and Engineering, Ishinomaki-Senshu University
4th Author's Name Noboru Wakatsuki
4th Author's Affiliation Department of Electronics and Materials, Faculty of science and Engineering, Ishinomaki-Senshu University
Date 1998/12/18
Paper # EMD98-78
Volume (vol) vol.98
Number (no) 494
Page pp.pp.-
#Pages 4
Date of Issue