PIEZOELECTRIC DRIVE DEVICE AND ROBOT

A piezoelectric drive device includes a plurality of piezoelectric vibrating portions that drive a driven member. A difference between the maximum resonance frequency and the minimum resonance frequency in each resonance frequency of the plurality of piezoelectric vibrating portions falls within a r...

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Bibliographische Detailangaben
1. Verfasser:	MIYAZAWA Osamu
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CHAMBERS PROVIDED WITH MANIPULATION DEVICES ELECTRICITY HAND TOOLS IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS RESONATORS TRANSPORTING
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Beschreibung
Zusammenfassung:	A piezoelectric drive device includes a plurality of piezoelectric vibrating portions that drive a driven member. A difference between the maximum resonance frequency and the minimum resonance frequency in each resonance frequency of the plurality of piezoelectric vibrating portions falls within a range of 0.001% to 5% of an average resonance frequency of the plurality of piezoelectric vibrating portions.