Title:
圧電アクチュエータの発生変位と発生力の自己感知方法
Document Type and Number:
Japanese Patent JP6997421
Kind Code:
B2
Abstract:
To provide a method for self-sensing of a displacement of generation and force of generation of a piezoelectric actuator.SOLUTION: The displacement of generation and the force of generation are determined from relations of the self-sensing force, the self-sensing displacement, the self-sensing load-free displacement, the rigidity, the capacity, the insulating resistance, the driving voltage, the dielectric absorption charge, the integrated capacity of an integrator, and the output voltage of a piezoelectric actuator. The accuracy of self-sensing of the displacement of generation and the force of generation of a piezoelectric actuator can be increased by compensating for the dielectric absorption and the bias current of the piezoelectric actuator.SELECTED DRAWING: Figure 1
Inventors:
Choi Yukoku
Cai Nagane
Army strength
Horse sword strength
Lee Kunping
Cai Nagane
Army strength
Horse sword strength
Lee Kunping
Application Number:
JP2020121973A
Publication Date:
January 17, 2022
Filing Date:
July 16, 2020
Export Citation:
Assignee:
NINGBO UNIVERSITY
International Classes:
G01L1/16; G01B7/16; G01L25/00; H01L41/09; H02N2/18
Domestic Patent References:
| JP2010229881A | ||||
| JP201050382A |
Foreign References:
| US20150054520 |
Attorney, Agent or Firm:
Arima Momoko
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