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Insitu corona poling of piezoelectric ceramics
专利权人:
GENERAL ELECTRIC COMPANY
发明人:
Philip Wayne Luk
申请号:
US15476954
公开号:
US10636959B2
申请日:
2017.03.31
申请国别(地区):
US
年份:
2020
代理人:
摘要:
The present disclosure relates to methods of manufacture of piezoelectric ceramic transducers useable, for example, in an ultrasound probe, using a poling process. The poling is accomplished without contacting transducer elements and by subjecting the piezoelectric ceramic transducer to a corona discharge. The disclosure further describes a system for poling a transducer comprising at least one piezoelectric ceramic component or transducer assembly, a ground plane comprising an electrical polarity, and a corona source connected to a first power source configured to supply a first voltage to the corona source having an electrical polarity opposite the electrical polarity of the ground plane. The at least one piezoelectric ceramic component or transducer assembly is positioned between the corona source and the ground plane within a chamber.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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