Location Dependence of Mass Sensitivity for Acoustic Wave Devices

Sensors

Kewei Zhang¹  Yuesheng Chai¹  Z.-Y. Cheng² 

[1] School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China; E-Mails:;Materials Research and Education Center, Auburn University, Auburn, AL 36849, USA

关键词: mass sensitivity;    acoustic wave device;    point mass;    biosensor;    microcantilever;    magnetostrictive particles;   

DOI  :  10.3390/s150924585

来源: mdpi

【 摘 要 】

It is introduced that the mass sensitivity (S_m) of an acoustic wave (AW) device with a concentrated mass can be simply determined using its mode shape function: the S_m is proportional to the square of its mode shape. By using the S_m of an AW device with a uniform mass, which is known for almost all AW devices, the S_m of an AW device with a concentrated mass at different locations can be determined. The method is confirmed by numerical simulation for one type of AW device and the results from two other types of AW devices.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.