Title :
Application of ferrofluids as an acoustic transducer material
Author :
Dubbelday, Pieter S.
Author_Institution :
Florida Institute of Technology, Melbourne, FL.
fDate :
3/1/1980 12:00:00 AM
Abstract :
Application of ferrofluids to electroacoustic transduction is discussed. A design of a piston-type transducer is described, and power transfer calculations are given, showing that useful levels of acoustic power emission can be obtained at intermediate frequencies (100 to 3000 Hz). A toroidal configuration is proposed as an alternative that essentially utilizes the fluid properties of the material and that, in principle, can be employed in large dimensions for very low frequencies.
Keywords :
Acoustic transducers; Magnetic liquids; Acoustic materials; Acoustic transducers; Equations; Frequency; Magnetic materials; Magnetization; Pistons; Solenoids; Solids; Toroidal magnetic fields;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1980.1060624