Title :
Analysis and design of a low frequency piston-like infra-sound transmitter
Author :
Gao, Bo ; Piao, Sheng-chun ; Yang, Shi-e ; Zhang, Hai-gang
Author_Institution :
Nat. Lab. of Underwater Acoust. Technol., Harbin Eng. Univ., Harbin, China
Abstract :
Summary form only given. A kind of ultra-low frequency piston-like sound source was analyzed and designed. The circular radiator on an infinite baffle plate was used as the acoustic model of the transducer. To get higher efficiency, sound wave was radiated from the source by the vibration of both sides of transmitter with corresponding radiation impedance. The relationship among frequency, radius and the vibrating amplitude of the radiator had been derived for different source levels. The infra-sound transmitter designed in this paper was proved to be powerful, and satisfied the demand of low-frequency sound propagation experiment in shallow water.
Keywords :
acoustic generators; acoustic radiators; acoustic wave propagation; pistons; acoustic model; circular radiator; infinite baffle plate; low frequency piston-like infra-sound transmitter; low-frequency sound propagation experiment; radiation impedance; shallow water; sound wave; source levels; transducer; vibrating amplitude; vibration; Acoustic propagation; Acoustic transducers; Acoustical engineering; Design engineering; Frequency; Impedance; Laboratories; Power systems; Transmitters; Underwater acoustics; Sound source; low-frequency; piston-like vibration;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) and 2009 China Symposium on Frequency Control Technology, Joint Conference of the 2009 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4950-7
DOI :
10.1109/SPAWDA.2009.5428981
