Investigations on Electroacoustic Transducers

This work attempts to decorate the exploding field of “Electroacoustic Transducers” focusing the conceptualization design development modeling simulation and manufacturing of transducers like microphone woofer and miniature-loudspeaker. Also a loudspeaker in 4C products like earbud and insert earphone is targeted. Modeling simulation fabrication and testing are 4 main pillars of this work. Dynamic Analogy using equivalent circuit is used to develop analytical model aided by micro-tensile test and finite element simulation. Laser vibrometry and an anechoic chamber measurement are aided with parametric simulations to expedite design and development. A handful discussion is aimed for an electret condenser microphone. Performance of 10” woofer is visualized by reverse engineering. Four miniature-loudspeakers are simulated and designed. Diaphragm and magnetic motor modifications are tried to reduce total harmonic distortion of circular and elliptical miniature-loudspeakers. An earbud and insert earphones are also designed simulated and tested. Anyone involved in electroacoustic transducer study research development and manufacturing can get benefited by using this work.