Active structural acoustic control by using structural volume velocity sensing

Guoyong Jin; Hongtian Zhang; Wanyou Li

doi:10.1117/12.843486

20 October 2009 Active structural acoustic control by using structural volume velocity sensing

Guoyong Jin, Hongtian Zhang, Wanyou Li

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74935L (2009) https://doi.org/10.1117/12.843486
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

This paper presents a new volume velocity sensor and its application in active structural acoustic control system. Utilizing the charge output equation of the PVDF piezoelectric film and orthogonal property of trigonometric function, a design strategy for a PVDF sensor detecting the volume velocity induced by a vibrating 2D structure is presented. The designed sensor is made of shaped strips of PVDF film. The experimental implementation of the new sensor in an active structural acoustic control system is then presented. The experimental results obtained validate this new type of volume velocity sensor, and significant attenuation of the radiated sound field is obtained.

Citation Download Citation

Guoyong Jin, Hongtian Zhang, and Wanyou Li "Active structural acoustic control by using structural volume velocity sensing", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74935L (20 October 2009); https://doi.org/10.1117/12.843486

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