Patent ID: 11931776
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Measurement (Instruments)
Classification: CPC B  G  H | IPC B  H

Claim 12:
13. A method for manufacturing the actuator of claim 1, the method comprising:
providing the multilayer piezoelectric member having the plurality of stacked piezoelectric units;
forming integrally the elastic metal member having the plurality of curved segments and the plurality of connection segments, the plurality of curved segments and the plurality of connection segments constituting the ring structure with the long-axis direction and the short-axis direction;
imparting a preload stress to the elastic metal member; and
coupling, using the plurality of coupling members having a size corresponding to the preload stress, the two ends of the multilayer piezoelectric member in its stack direction to the connection segments of the elastic metal member in the long-axis direction.