| 摘要 |
A piezoelectric power generator ( 20, 120 ) comprises plural piezoelectric devices ( 22, 122 ); an actuator ( 24 ) positioned to impart an excitation to the plural piezoelectric devices ( 22, 122 ) in a predefined sequence; and, an electrical conduction system ( 30 ) connected to the plural piezoelectric devices for conducting an electrical charge created by the excitation. Preferably the plural piezoelectric devices ( 22, 122 ) are arranged in a predetermined relationship relative to the actuator ( 24 ) whereby only one of the plural piezoelectric devices ( 22, 122 ) is actuated at a time. For example, the plural piezoelectric devices ( 22, 122 ) can be arranged in an angular pattern (such as a circular pattern) relative to the actuator ( 24 ). Preferably, a rotational speed of the actuator ( 24 ) permits an excitation response for a given plural piezoelectric device ( 22, 122 ) to essentially fully decay before the given plural piezoelectric device ( 22, 122 ) is again excited.
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