Related Experiment Video
Updated: Dec 31, 2025

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
Excitation of moderate-frequency Love wave in a Plexiglas plate on aluminum semi-space
Mingtong Chen1, Qiang Huan1, Faxin Li1
1State Key Laboratory for Turbulence and Complex Systems, and College of Engineering, Peking University, Beijing 100871, Chinachenmingtong@pku.edu.cn, qiang_huan@pku.edu.cn, lifaixn@pku.edu.cn.
Abstract:
Love waves are of great importance in geophysics, electronics, and engineering. Despite intensive studies on high-frequency Love waves for delay lines and chemical/biomedical sensors, moderate-frequency and low-frequency Love waves have seldom been investigated. Here, Love waves in a 2-mm-thick Plexiglas plate bonded on a 50-mm-thick aluminum block were successfully excited and received by using d24 and d15 shear mode PZT wafers. A d31 mode PZT wafer was also employed as the sensor, and results show that no Rayleigh-Lamb type waves were generated. The group velocity curve of the excited Love wave from 120 to 525 kHz matches the theoretical curve well. This work could promote applications of Love waves in many engineering fields.
Related Concept Videos
Steady, Laminar Flow Between Parallel Plates
Vibrating Concrete
Generating Electromagnetic Radiations

