Electro-Acoustic Transducers with Piezoelectric High Polymer Films
Various transducers such as stereophonic-headphones, tweeters, microphones, and phonograph cartridges have been developed with very thin piezoelectric high polymer films. These transducers have quite simple structures because the diaphragms are piezoelectric films and involve transducing function in themselves. The high polymer element is a poly(vinylidene fluoride) in film form that ranges from 8µm for tweeters and microphones.
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