Title :
Simulation on sound transmission loss of PTFE Micro-aperture Membrane
Author :
Liu Ai-li ; Lou Wen-zhong ; Liu Xiao-song
Author_Institution :
Sch. of Aerosp. Sci. & Eng., Beijing Inst. of Technol., Beijing
Abstract :
Sound transmission loss of a kind of micro-aperture membrane PTFE is simulated in this paper for protection of microphones used in harsh environment. The simulation result is coincident with testing using impedance tube method.Sound transmission loss is low and coherent in the frequency domain with less than 10 dB. It is concluded that PTFE Micro-aperture Membrane has good character of sound transmission and can be used to protect microphones in engineering application of harsh environment.
Keywords :
acoustic wave propagation; microphones; protection; PTFE; impedance tube method; micro-aperture membrane; microphones protection; sound transmission loss; Absorption; Acoustic materials; Acoustical engineering; Apertures; Biomembranes; Impedance; Microphones; Power engineering and energy; Propagation losses; Protection; PTFE; Simulation; Sound transmission loss;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2008. NEMS 2008. 3rd IEEE International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-1907-4
Electronic_ISBN :
978-1-4244-1908-1
DOI :
10.1109/NEMS.2008.4484318
