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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...
An alternate stepping piezoelectric linear motor was proposed. The operation principle of this novel linear motor was analyzed. A prototype was fabricated and its mechanical properties was tested which proves that the principle is feasible. When the motor is driven by three-phase square and triangular waves and four-phase sine waves at a voltage of 100V(peak to peak value), and frequency of 100Hz,...
A new type of linear motor is introduced which can work under non-resonant condition with a wide frequency range. The friction driving mechanism of motor was investigated and working process of the motor was described as driving process and detachment process. Then complete detachment was defined as no strain between the stator and the slider. Further, the vibration differential equation was deduced...
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