Abstract
The manipulator is the key component of the micromanipulator. Using the axial expansion and contraction properties, the piezoelectric tube can drive the manipulator to achieve micro-motion positioning. It is widely used in scanning probe microscopy, fiber stretching and beam scanning. The piezoceramic tube actuator used to have continuous electrodes inside and outside. It is polarized along the radial direction. There are relatively high polarization voltages, but poor axial mechanical properties. A new tubular actuator is presented in this paper by combining interdigitated electrodes and piezoceramic tubes. The preparation, polarization and mesoscopic mechanical properties were investigated. Using Lead Zirconate Titanate (PZT-52) as a substrate, the preparation process of interdigitated electrodes by screen printing was studied. For initial polarization voltage determination, the local characteristic model of the actuator was extracted and the electric field was analyzed by a finite element method. By measuring the actuator’s axial displacement, we measured the actuator’s polarization effect. Various voltages, times and temperatures were evaluated to determine how polarization affects the actuator’s displacement. Optimal polarization conditions are 800 V, 60 min and 150 °C, with a maximum displacement of 0.88 μm generated by a PZT-52 tube actuator with interdigitated electrodes. PZT-52 tube actuators with a continuous electrode cannot be polarized under these conditions. The maximum displacement is 0.47 μm after polarization at 4 kV. Based on the results, the new actuator has a more convenient polarization process and a greater axial displacement from an application standpoint. It provides technical guidance for the preparation and polarization of the piezoceramic tube actuator. There is potential for piezoelectric tubular actuators to be used in a broader range of applications.
Funder
National Natural Science Foundation of China
Key Project of Science and Technology Development of Henan Province
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Control and Systems Engineering
Reference38 articles.
1. Ultrasonic Motors Technologies and Applications;Zhao,2011
2. Mechanical characterization of piezoelectric materials: A perspective on deformation behavior across different microstructural length scales
3. Noise reduction in a medical imaging instrument using distributed piezoelectric actuator/sensor based on the FEM modeling;Gudarzi;J. Sci. Eng.,2013
4. Pressure mapping system based on guided waves reflection;Quaegebeur;Proceedings of the Health Monitoring of Structural and Biological Systems,2013
5. Interdigital sensors and transducers
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