Use of Trapped-Energy Mode of Backward-Wave-Type Thickness Vibration for Liquid-Level Sensing

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概要

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• The authors have presented a new technique that employs a piezoelectric thickness vibrator operating in a trapped-energy mode for detecting a small-scale variation in liquid level. In this study, the feasibility of applying backward-wave-type energy trapping to liquid level sensing is investigated. It has been found that backward-wave-type energy trapping shows a sensing property slightly different from those obtained using conventional trapped-energy modes. Gradual variations in resonance characteristics with liquid level have been observed for backward-wave-type energy trapping when the liquid surface is in the surrounding electroded region.

• The Japan Society of Applied Physicsの論文
• 2010-07-25

著者

• Yamada Ken

  Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan

• Horiuchi Shuhei

  Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Miyagi 985-8537, Japan

• Seto Shuichi

  Graduate School of Engineering, Tohoku Gakuin University, Tagajo, Miyagi 985-8537, Japan

関連論文

• Liquid-Level Sensing by Trapped-Energy-Mode Thickness Vibration
• Use of Trapped-Energy Mode of Backward-Wave-Type Thickness Vibration for Liquid-Level Sensing
• LiNbO3 Ultrasonic Transducers with an Inverted-Domain Layer for Radiation to Solid Media

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