Li Xiaotao

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A new kind of sensor for measuring force in arbitrary direction to test force's value and direction with a dimension Oslash53 mm times h8.2 mm, developed for dental surgery measurement, has been proposed in this article. A four-beam structure is employed for arbitrary force test. Based on material theory the value and direction of force can be calculated by(More)
A new method to realize the impact movement by changing the friction is proposed. Based on the match of inertial impact and the friction, a nano drive actuator driven by the piezoelectric bimorphs is designed, which is actuated by the symmetry electrical wave. The performance experimentation and analysis of the actuator under different driving frequency,(More)
A new piezoelectric/ electrorheological hybrid hydraulic ultra-precision step actuator that uses a hybrid mode of piezoelectric stack pump hydro-drive and electrorheological valve control to the precision hydraulic cylinder is presented. It achieves high frequency, ultra-precision hydraulic step drive. The working principle of the step actuator is analyzed(More)
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