Coaxial musical instrument transducer
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United States of America Patent
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Jan 13, 2004
Issued Date -
N/A
app pub date -
Dec 19, 2001
filing date -
Jul 2, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A transducer for a stringed musical instrument utilizes a coaxial structure. An electromechanical film tape is disposed about an inner, electrically conductive core. An outer conductor is formed about the electromechanical film tape. The electromechanical film tape may be provided as a piezoelectric polymer film or an electret film having a permanent electric charge, and is formed about the inner core by wrapping or braiding. Prior to being disposed about the inner core, the film tape may be polarized through the application of a direct current through the film to substantially align the electrical domains in the film. The transducer is configured for placement underneath the saddle in a bridge of a stringed musical instrument.
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