Volume 77, Number 2, January 2007
|Number of page(s)||3|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||19 January 2007|
A new mass sensor based on thickness-twist edge modes in a piezoelectric plate
Key Laboratory for Advanced Materials and Rheological Properties of Ministry of Education, Xiangtan University Xiangtan, Huanan 411105, PRC
2 Department of Engineering Mechanics, University of Nebraska - Lincoln, NE 68588, USA
3 Department of Mechanical Engineering, The University of Hong Kong - Hong Kong
Accepted: 22 November 2006
We propose a new mass sensor based on thickness-twist edge modes in a piezoelectric plate of 6 mm crystals. By performing a theoretical analysis, a simple expression of sensitivity is obtained. The proposed sensor has an important advantage in the sense that it can be mounted away from the edge of the plate where the motion is insignificant and, thus, the operation of the device is unaffected.
PACS: 85.50.-n – Dielectric, ferroelectric, and piezoelectric devices
© Europhysics Letters Association, 2007
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