A wideband combined transducer for measuring system in sound tube

• 作者: CUI Zheng LIU Yongping MO Xiping PAN Yaozong ZHANG Tonggen
• 来源期刊: 声学学报：英文版
• 学科: 工学
• 关键词: 测量系统 传感器 宽带 弯张换能器 声学材料 工作频带 低频性能 等效电路
• 年，卷（期）: 2012,（2）
• 页码范围: 144-152
• 页数: 9页
• 分类号: TN915.1|TB9
• 语种: 英文

摘要

A wideband transducer for sound tube system is presented, which combines longitudinal transducer and Class IV flextensional transducer to improve the performance at low frequency and broaden the working band. The equivalent circuit is obtained and used to analyze the coupling mechanism between longitudinal transducer and flextensional transducer. A prototype of the transducer is developed after optimizing the electro-acoustic performances by Finite Element Method. The standing wave in the sound tube stimulated by this transducer has been studied and the sound absorbing coefficients of two acoustic materials samples are measured using this sound tube, which shows that the transducer can meet the requirements of acoustic material measurement with the working band ranging from 1.4 kHz to 23 kHz.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	PAN Yaozong	中国科学院声学研究所	1	0	0.0	0.0
2	MO Xiping	中国科学院声学研究所	2	0	0.0	0.0
3	LIU Yongping	中国科学院声学研究所	1	0	0.0	0.0
4	CUI Zheng	中国科学院声学研究所	1	0	0.0	0.0
5	ZHANG Tonggen	中国科学院声学研究所	1	0	0.0	0.0