发明名称 |
Linear piezoelectric ultrasonic motor |
摘要 |
The present invention relates to a linear motor which draws its operating power from ultrasonic vibration above the frequency of 20 kHz which is generated by piezoelectric ceramic. More particularly, the invention relates to a linear piezoelectric ultrasonic motor which linearly operates a slider due to a frictional force generated by applying sinusoidal electric field with a 90 degree phase difference to a pair of piezoelectric ceramic. This causes an elliptical mechanical vibration on a shaking beam which is connected to the piezoelectric ceramic.
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申请公布号 |
US6984920(B2) |
申请公布日期 |
2006.01.10 |
申请号 |
US20020211868 |
申请日期 |
2002.08.02 |
申请人 |
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
YOON SEOK JIN;KIM HYUN JAI;CHOI JI WON;KANG CHONG YUN;LEE DONG KYUN;VASILJEV PIOTR |
分类号 |
H01L41/08;H02N2/00;H01L41/09;H02N2/08 |
主分类号 |
H01L41/08 |
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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