Title :
Modeling Impermeable Membranes as Acoustic Filters for Biomedical Aplications
Author :
Goenaga, Miguel A. ; Juan, Eduardo J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Puerto Rico Univ., Mayaguez
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
The main purpose of this research project was to explore a mathematical expression that could be used by medical device designers to appropriately select impermeable membranes to isolate acoustic transducers from water, dust, earwax or other foreign material. The sound transmission properties of various types of impermeable membranes were analytically evaluated and compared to experimental measurements. Computer simulations were also performed to estimate the effects of three key membrane parameters: thickness (h), density (p) and sound speed (c), on the membrane´s overall acoustic response. Results indicated that membrane thickness and density affect sound transmission the most. Membrane sound speed had minimal effect on sound transmission
Keywords :
acoustic filters; acoustic transducers; acoustic wave transmission; biomedical transducers; membranes; acoustic filters; acoustic response; acoustic transducer; biomedical application; computer simulations; earwax; foreign material; impermeable membrane modeling; medical device designer; membrane sound speed; sound transmission properties; Acoustic devices; Acoustic materials; Acoustic measurements; Acoustic transducers; Biological materials; Biomedical acoustics; Biomedical materials; Biomedical measurements; Biomembranes; Filters; Transmission coefficient; impermeable; membrane; sound propagation;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260028
