| 摘要 |
An ultrasonic motor capable of producing a high output and a method of fabricating the same are disclosed. The ultrasonic motor has a drive source 100 including a piezoelectric device 1 and a transducer 21, in close contact with each other, in which the product of the piezoelectric constant d31, the admittance Ym and the mechanical quality factor Qm measured under the conditions of the drive source 100 is not less than 63x1031 10 m.S/V.
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