JPS6455083A - Ultrasonic motor - Google Patents
Ultrasonic motorInfo
- Publication number
- JPS6455083A JPS6455083A JP62210470A JP21047087A JPS6455083A JP S6455083 A JPS6455083 A JP S6455083A JP 62210470 A JP62210470 A JP 62210470A JP 21047087 A JP21047087 A JP 21047087A JP S6455083 A JPS6455083 A JP S6455083A
- Authority
- JP
- Japan
- Prior art keywords
- piezo
- stator
- ultrasonic motor
- output
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
PURPOSE:To effect automatic tracking easily and correctly, by a method wherein an element, having the same temperature coefficient as that of a piezo-electric body, is employed as a vibration detecting element. CONSTITUTION:A vibration detecting element 6 is provided on one part of the surface of a stator for an ultrasonic motor while the stator is constituted of a disc type elastic body 1 and piezo-electric bodies 2, 3 for driving. An output transmitting member or a projection is provided at an output fetching position 4 on the stator while a vibration detecting element 6, consisting of a piezo-electric body, is provided on the surface of the elastic body 1, which is opposed to said piezo-electric bodies 2, 3. The element 6 is provided at the output fetching position 4, whereat the output becomes to have the maximum amplitude. A rotor is provided so as to contacted with the stator. According to this method, the affection of the heat generation in the ultrasonic motor may be removed and the automatic tracking of frequency may be effected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62210470A JPS6455083A (en) | 1987-08-25 | 1987-08-25 | Ultrasonic motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62210470A JPS6455083A (en) | 1987-08-25 | 1987-08-25 | Ultrasonic motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6455083A true JPS6455083A (en) | 1989-03-02 |
Family
ID=16589871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62210470A Pending JPS6455083A (en) | 1987-08-25 | 1987-08-25 | Ultrasonic motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6455083A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03230771A (en) * | 1990-02-02 | 1991-10-14 | Canon Inc | Vibration wave motor |
KR100341871B1 (en) * | 1993-09-08 | 2002-11-29 | 아스라브 쏘시에떼 아노님 | Piezoelectric motor with rotor position detector and its piezomotor stator manufacturing method |
-
1987
- 1987-08-25 JP JP62210470A patent/JPS6455083A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03230771A (en) * | 1990-02-02 | 1991-10-14 | Canon Inc | Vibration wave motor |
KR100341871B1 (en) * | 1993-09-08 | 2002-11-29 | 아스라브 쏘시에떼 아노님 | Piezoelectric motor with rotor position detector and its piezomotor stator manufacturing method |
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