Patent ID: 11872814
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A liquid ejecting head comprising:
a piezoelectric device including a first electrode, a second electrode, and a piezoelectric layer located between the first electrode and the second electrode in a stacking direction in which the first electrode, the second electrode, and the piezoelectric layer are stacked on top of one another;
a vibration plate disposed on a first side in the stacking direction of the piezoelectric device and subjected to deformation when the piezoelectric device is driven;
a pressure chamber plate disposed on the first side in the stacking direction of the vibration plate and including a plurality of pressure chambers whose volume is changed by deformation of the vibration plate;
a wiring board;
a first wire through which the wiring board and the first electrode are electrically coupled to each other;
a second wire through which the wiring board and the second electrode are electrically coupled to each other;
a temperature detector electrically coupled to the wiring board and used to determine a temperature in the plurality of pressure chambers, the temperature detector being formed of the same material as the first electrode;
a first measurement electrode that electrically coupled with the wiring board and one edge of the temperature detector; and
a second measurement electrode that electrically coupled with the wiring board and the other edge of the temperature detector.