A Finite Element Analysis on SAW Sensor for Torque Measuring

Li Jiu Wang; Yun Tao Zhang

doi:10.4028/www.scientific.net/AMM.716-717.1080

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 716-717A Finite Element Analysis on SAW Sensor for Torque...

A Finite Element Analysis on SAW Sensor for Torque Measuring

Abstract:

When detecting torque with surface acoustic wave (SAW) resonator sensors, the real strain of the host structure is not exactly consistent with the strain of SAW resonator due to material mismatch and the finite-thickness adhesive problem. A 3-layer (host structure, adhesive, and resonator layer) model is established. Finite-element Analysis (FEA) was used to investigate the strain transfer from the metal substrate to the SAW resonator (SAWR) through a bonding layer. The results show that the values of the strain transfer rate of FEA agree well with the experimental data. It can be concluded that FEA is of great value for SAW sensor design and sensing applications.

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Periodical:

Applied Mechanics and Materials (Volumes 716-717)

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1080-1083

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.716-717.1080

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Online since:

December 2014

Authors:

Li Jiu Wang*, Yun Tao Zhang

Keywords:

FEA, SAW Sensor, Surface Acoustic Wave

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