Sensitivity of Frequency Change of Piezoelectric Vibratory Tactile Sensor Using Longitudinal-Bar-Type Resonator

Subaru Kudo

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Sensitivity of Frequency Change of Piezoelectric Vibratory Tactile Sensor Using Longitudinal-Bar-Type Resonator

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摘要

Piezoelectric vibratory tactile sensors are used for measuring the softness and hardness of an object. In this paper, the sensitivity of the frequency change of the longitudinal-bar-type tactile sensor is presented. The approximate equation of the frequency change of the tactile sensor in contact with an object was derived using the distributed constant-circuit model. Then, the experimental characteristics of the manufactured tactile sensors were shown by measuring the softness and hardness of the test pieces. The sensitivity was increased when the resonator with higher resonance frequency was used. It was also clarified that the sensitivity was inversely proportional to the mass of the resonator. The obtained results will be useful for designing the piezoelectric vibratory tactile sensor.

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来源
《Japanese journal of applied physics》 |2007年第7b期|4704-4708|共5页
作者
Subaru Kudo;
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作者单位

Department of Information Technology and Electronics, School of Science and Engineering, Ishinomaki Senshu University, Ishinomaki, Miyagi 986-8580, Japan;

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原文格式 PDF
正文语种英语
中图分类应用物理学;
关键词
tactile sensor; piezoelectric vibration; longitudinal-bar resonator; sensitivity; frequency change; approximate equation; distributed constant-circuit model;

Sensitivity of Frequency Change of Piezoelectric Vibratory Tactile Sensor Using Longitudinal-Bar-Type Resonator

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