发明名称 |
PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC ULTRASONIC LINEAR MOTOR THEREBY AND MANUFACTURING METHOD THEREOF |
摘要 |
A piezoelectric actuator, a piezoelectric ultrasonic linear motor using the same and a method for manufacturing the same are provided to improve control precision within a large displacement by directly moving an object. A piezoelectric layer(11) and a multiple layer(12) are integrally formed by a high temperature sintering process and a hole(13) is punched in the center. A piezoelectric actuator of a disk-type, uni-morph type, is polarized to a thickness direction thereof and moves to front and back surfaces when voltage is applied. |
申请公布号 |
KR20090016062(A) |
申请公布日期 |
2009.02.13 |
申请号 |
KR20070080424 |
申请日期 |
2007.08.10 |
申请人 |
SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION;KYUNGWON FERRITE IND. CO., LTD. |
发明人 |
KIM, HYOUN EE;LEE, KYUNG WOO;JUN, SHIN HEE |
分类号 |
H02N2/04 |
主分类号 |
H02N2/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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