PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC MOTOR, ROBOT, HAND, AND PUMP

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专利权人:

Seiko Epson Corporation

发明人:

Kiichi KAJINO,Yutaka ARAKAWA

申请号：

US15469969

公开号：

US20170279033A1

申请日:

2017.03.27

申请国别(地区):

US

年份:

2017

代理人:

摘要：

A piezoelectric actuator includes a first piezoelectric element that outputs a first signal when being driven, a second piezoelectric element that outputs a second signal when being driven, a signal combining part that delays phase of the second signal and outputs a composite signal by combination of the second signal and the first signal, and a drive state determination part that determines respective drive states of the first piezoelectric element and the second piezoelectric element based on the composite signal.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/