Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
Title： |
| Composite ultrasonic micromotor with slotted metal square column piezoelectric sheet |
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Application Number： |
200510063340 |
Application Date： |
2005/04/08 |
Announcement Date： |
2005/09/14 |
Pub. Date： |
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Publication Number： |
1667934 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H02N 2/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Zhou Tieying, Lu Cunyue, Chen Yu |
Key Words： |
Composite ultrasonic micromotor, slotted, metal square column, piezoelectric sheet |
Abstract： |
This invention relates to a metal square post piezoelectric compound supersonic micro-machine composed of a stator exciting vibration of supersonic sound, a rotor outputting moment or a runner and a pre-pressure unit pressing the rotor or the runner characterizing that said stator is mainly composed of a metal piezoelectric ceramic compound square post and matched blocks comprising a metal square post exciting vibration and piezoelectric ceramic plates, four slots are opened axially at the four edge angles of the post, said plates are adhered on the two or four side faces of the post polarized along the thickness direction, the surface of the plate connected with excited electrode is coated with outer electrodes for polarization and excitation. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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