- Patent Title: Piezoelectric element feeder capable of measuring electric characteristics of piezoelectric element and method of measuring electric characteristics of piezoelectric element
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Application No.: US14017859Application Date: 2013-09-04
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Publication No.: US09638650B2Publication Date: 2017-05-02
- Inventor: Mikio Arai
- Applicant: NHK SPRING CO., LTD.
- Applicant Address: JP Kanagawa
- Assignee: NHK Spring Co., Ltd.
- Current Assignee: NHK Spring Co., Ltd.
- Current Assignee Address: JP Kanagawa
- Agency: Norris McLaughlin & Marcus, P.A.
- Priority: JP2012-203127 20120914
- Main IPC: G01N27/00
- IPC: G01N27/00 ; H01L41/25

Abstract:
A piezoelectric element feeder for feeding a piezoelectric element, includes a drawing unit that draws a first electrode surface of the piezoelectric element with use of negative pressure and transfers the piezoelectric element onto the actuator attaching part and a probe movably supported with the drawing unit and used to measure electric characteristics of the piezoelectric element. A front end of the probe is brought into contact with the first electrode surface when or just before the drawing unit draws the first electrode surface, to enable a measurement of the electric characteristics of the piezoelectric element.
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