AIR-COUPLED TRANSDUCER WITH A HOLLOW GLASS MICROSPHERES FILLED EPOXY RESIN MATCHING LAYER

摘要：

The main problem among the developing of the thickness mode piezoelectric air-coupled ultrasonic transducer is the acoustic impedance mismatch between piezoelectric plate and air.To solve this problem,a kind of porous composite material is introduced as the matching layer.The acoustic parameters measurement methods of the hollow glass microspheres filled epoxy resin composite material is studied in this article.On this basis,a pair of thickness mode air-coupled transducer with hollow glass microspheres filled epoxy resin as the matching layer is manufactured.A transmitting receiving testing system using this pair of transducers is built,the uplifting of receiving signal voltage peak-to-peak value is measured and compared with theoretical calculations.

关键词： Hollow glass microspheres filled epoxy resin Air-coupled transducer Matching layer

作者: Qiao WU Qiu-ying CHEN Guo-xuan LIAN Xiao-min WANG

作者单位: State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Science, Beijing, 100190, China

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 305-308

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）