Invention Grant
- Patent Title: Ultrasonic motor
- Patent Title (中): 超声波电机
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Application No.: US12736022Application Date: 2009-03-05
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Publication No.: US08344592B2Publication Date: 2013-01-01
- Inventor: Wladimir Wischnewskly , Alexej Wischnewsklj
- Applicant: Wladimir Wischnewskly , Alexej Wischnewsklj
- Applicant Address: DE Karlsruhe
- Assignee: Physik Instruments (PI) GmbH & Co. KG
- Current Assignee: Physik Instruments (PI) GmbH & Co. KG
- Current Assignee Address: DE Karlsruhe
- Agent Gerald T. Bodner
- Priority: DE102008012992 20080307
- International Application: PCT/EP2009/052565 WO 20090305
- International Announcement: WO2009/109606 WO 20090911
- Main IPC: H01L41/08
- IPC: H01L41/08

Abstract:
The invention relates to an ultrasonic motor having a multilayer actuator in the form of a multilayer plate, having one or more friction elements or friction layers on its side surfaces and having an electrical exciter apparatus for the actuator. According to the invention, the multilayer plate has two intersecting, mirror-imaged asymmetrical generators for ultrasonic vibrations, to be precise in the form of layers of exciter electrodes and general electrodes which are alternately arranged with layers of piezoelectric ceramic, wherein a two-dimensional asymmetrical acoustic standing wave is generated in the multilayer actuator.
Public/Granted literature
- US20110050035A1 ULTRASONIC MOTOR Public/Granted day:2011-03-03
Information query
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