title: Note: Self-sensing based on charge control improves the performance of active damping using piezoelements.
abstract: A piezoelectric element can be used separately as a sensor or an actuator. A self-sensing strategy based on a charge driver can utilize a piezoelectric element as a sensor while actuating. The strategy was proven via experiments on a cantilever vibrator using a piezoelectric plate with both sensing and actuating functions. The amplitude of the vibration was actively damped by a factor exceeding 90%. The method can be used in numerous fields, including scanning probe microscopy, vibration suppression, and monitoring the health of structures.
authors.affiliation: Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors.forename: Yong Bin
authors.initials: YB
authors.lastname: Liu
authors.forename: Lian Sheng
authors.initials: LS
authors.lastname: Zhang
authors.forename: Zhi Hua
authors.initials: ZH
authors.lastname: Feng