Experimental Study of Highly Sensitive Sensor Using a Surface Acoustic Wave Resonator for Wireless Strain Detection

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概要

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• We developed a highly sensitive strain sensor employing a surface acoustic wave (SAW) resonator for a wireless sensing system. The aim of this study is to monitor the distribution of the strain in the earth crust or giant infrastructures, such as bridges, skyscrapers and power plants, for disaster prevention. A SAW strain sensor was fabricated using LiNbO3 and a quartz substrate, and applied in a tensile test by attaching the steel specimen based on Japanese Industrial Standards (JIS Z2441-1). The results confirmed that the developed sensor could detect a strain of 10^{-6} order with linearity.

• 2012-07-25

著者

• Hara Motoaki

  Department of Electronic & Electrical Engineering, Kanagawa Institute of Technology

• Kuwano Hiroki

  Department Of Nano-mechanics Faculty Of Engineering Tohoku University

• Nagasawa Sumito

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

• Zhongqing Bao

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

• Mitsui Misato

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

• Sano Koji

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

• Bao Zhongqing

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

• NAGASAWA Sumito

  Department of Nanomechanics Graduate School of Engineering, Tohoku University

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