Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-02-02
1997-08-12
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310323, H02N 200
Patent
active
056568819
ABSTRACT:
A vibration wave driven motor includes a vibrator, a plurality of driving electro-mechanical energy conversion element portions disposed in the direction of lamination relative to the vibrator, frequency signals of different phases being applied to the conversion element portions, and a monitoring electro-mechanical energy conversion element provided in the vibrator in the direction of lamination relative to the conversion element portions.
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Canon Kabushiki Kaisha
Dougherty Thomas M.
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