Resonance Properties of a Functionally Gradient Piezoelectric Actuator Based on PNN-PZ-PT Ceramics

Hai Yan Chen; Zhong Yan Meng

doi:10.4028/www.scientific.net/KEM.434-435.747

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Resonance Properties of a Functionally Gradient...

Resonance Properties of a Functionally Gradient Piezoelectric Actuator Based on PNN-PZ-PT Ceramics

Abstract:

A functionally gradient piezoelectric actuator based on PbNi1/3Nb2/3O3-PbZrO3-PbTiO3 (PNN-PZ-PT) system was prepared. The cantilevered actuator consists of a high piezoelectric & low dielectric layer, a low piezoelectric & high dielectric layer and a thin middle diffusion layer. Frequency dependences of impedance were measured from 100Hz to 3MHz. The resonance modes were characterized. A number of low frequency modes were observed and identified as bending resonance. The dimension dependence of resonance frequency of bending resonance was investigated. The results of the measurement were compared with calculated values. There is a good agreement between the determined resonance frequencies and calculated values.

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Key Engineering Materials (Volumes 434-435)

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747-750

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.747

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Online since:

March 2010

Authors:

Hai Yan Chen, Zhong Yan Meng

Keywords:

Functionally Graded Material (FGM), Piezoelectric Actuator, Resonance Mode

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