title: Location Dependence of Mass Sensitivity for Acoustic Wave Devices.
abstract: It is introduced that the mass sensitivity (Sm) of an acoustic wave (AW) device with a concentrated mass can be simply determined using its mode shape function: the Sm is proportional to the square of its mode shape. By using the Sm of an AW device with a uniform mass, which is known for almost all AW devices, the Sm 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.
authors.affiliation: School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China. zhangk1@tigermail.auburn.edu.
authors.forename: Kewei
authors.initials: K
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China. cys5912@126.com.
authors.forename: Yuesheng
authors.initials: Y
authors.lastname: Chai
authors.affiliation: Materials Research and Education Center, Auburn University, Auburn, AL 36849, USA. chengzh@eng.auburn.edu.
authors.forename: Z-Y
authors.initials: ZY
authors.lastname: Cheng
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D003198:Computer Simulation; D060328:Magnetic Phenomena; D009716:Numerical Analysis, Computer-Assisted; D013016:Sound
keywords: acoustic wave device; biosensor; magnetostrictive particles; mass sensitivity; microcantilever; point mass