Title:
A valuation method of a piezo-electric material
Document Type and Number:
Japanese Patent JP6017236
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an evaluation method for a piezoelectric material, for evaluating a degree of magnitude of piezoelectric property in a piezoelectric material, in which even at stage before polarization processing, the degree of magnitude of piezoelectric property can be grasped.SOLUTION: An evaluation method for a piezoelectric material includes: a longitudinal wave velocity acquisition step for acquiring a longitudinal wave velocity at the time when a longitudinal wave, which propagates in a thickness direction of a piezoelectric material, propagates through the piezoelectric material; a transversal wave velocity acquisition step for acquiring a transversal wave velocity at the time when a transversal wave, which propagates in the thickness direction of the piezoelectric material, propagates through the piezoelectric material; a ratio calculation step for calculating a ratio between the longitudinal wave velocity and the transversal wave velocity; and an evaluation step for evaluating a degree of a magnitude of a piezoelectric property of the piezoelectric material from the ratio.
Inventors:
Toshio Ogawa
Application Number:
JP2012201835A
Publication Date:
October 26, 2016
Filing Date:
September 13, 2012
Export Citation:
Assignee:
Plus Comfort Co., Ltd.
Toshio Ogawa
Toshio Ogawa
International Classes:
G01R29/22; G01N29/07; H01L41/22
Domestic Patent References:
| JP9298325A | ||||
| JP2000221076A | ||||
| JP56046473A | ||||
| JP2006201006A | ||||
| JP56158941A | ||||
| JP2010062174A | ||||
| JP2011159844A |
Foreign References:
| US20080307885 |
Attorney, Agent or Firm:
Akihiro Yoshinobu