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PIEZOELECTRIC ELEMENT, ULTRASONIC PROBE, ULTRASONIC MEASUREMENT DEVICE, AND MANUFACTURING METHOD OF PIEZOELECTRIC ELEMENT
专利权人:
发明人:
Sayaka YAMASAKI,Hiroaki TAMURA
申请号:
US15340920
公开号:
US20170119350A1
申请日:
2016.11.01
申请国别(地区):
US
年份:
2017
代理人:
摘要:
A piezoelectric element includes: a piezoelectric body and a vibrating plate including single crystal silicon having anisotropy having orientation with a relatively high Poissons ratio and orientation with a relatively low Poissons ratio (hereinafter, referred to as “low Poissons ratio orientation”) as a vibrating material, in which the piezoelectric body and the vibrating plate are laminated on each other so that the low Poissons ratio orientation is in a direction along a high expansion and contraction direction among a direction where a degree of expansion and contraction caused according to a support structure of the piezoelectric body is relatively high (hereinafter, referred to as “high expansion and contraction direction”) and a direction where a degree thereof is relatively low.
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中国工程科技知识中心
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