| 摘要 |
An electrical generator or motion sensor including a) a pair of elongated L shaped supports ( 15 ) fixed at one end but free to move at the other b) a coil ( 14 ) secured to the supports remote from the fixed end c) an array of permanent magnets ( 12 ) arranged adjacent the coil such that movement of the coil through the magnetic field induces an electric current in the coil. To rectify the current the supports are made of a piezoelectric polymer membrane so that movement of the coil stresses the membrane to generate a voltage that is used to turn on a MOSFET transistor rectifier.
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