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Due to their high resolution and positioning accuracy, piezo-nanoposititioning stages are widely used in precision and ultra-precision fields. A nano-positioning platform with large travel range and bidirectional symmetrical output characteristic is proposed. Theoretical static model develops the relationships among output force, displacement, static stiffness and the structure parameters of the platform...
With the rapid development of modern precision manufacturing industry, actuators with high resolution and long stroke are needed in many application fields. Because of the unique advantages such as self-locking on the power off, compact structure, fast response etc., piezoelectric actuators have been taking place of the traditional actuators which are based on the principle of electromagnetic induction...
Linear piezoelectric motors adopting inertial impact driving mechanism has been driving the interests of many researchers for simple structure and compact size. To increase the efficiency of this type of stepping linear motor, a motor using two piezoelectric stacks was proposed in this work. Two piezoelectric stacks were placed in parallel and were preloaded between a triangular displacement transformer...
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