| 摘要 |
<p>A piezoelectric micromotor for rotating a shaft comprising a piezoelectric plate having edges and planar faces where the piezoelectric plate has specially shaped surfaces for coupling to the shaft. In one embodiment part of an edge is formed with a cylindrical surface and the shaft is resiliently pressed to the cylindrical surface. In another embodiment a hole is formed through the plate perpendicular to a planar face. The shaft is inserted into the hole and couples with the surface of the hole. One or a multiplicity of the micromotors according to the invention are coupled to a shaft. When a multiplicity of micromotors according to the invention are coupled to the shaft different advantagous configurations of phase differences between the vibration modes of the micromotors are possible.</p> |
