ENERGY CONVERTER
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United States of America Patent
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Issued Date -
May 23, 2024
app pub date -
Feb 18, 2022
filing date -
Mar 23, 2021
priority date (Note) -
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Abstract
A transducer is provided for converting mechanical energy to electrical energy. The transducer (100) comprises: a substrate (120); a ferroelectric element (110) adhered to the substrate (120); and a first and second electrode (114, 115) in electrical contact with the ferroelectric element (110). The first and second electrode (114, 115) are arranged to receive charge resulting from ferroelectric domain switching of the ferroelectric element (110) in response to mechanical loading of the transducer (100). The ferroelectric element (110) is partially polarised, so that a mechanical load cycle imposed on the transducer results in a reversible cycle of ferroelectric domain switching.
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