The input electrical impedance behaves as a capacitive when a piezoelectric transducer is excited near its resonance frequency. In order to increase the energy transmission efficiency, a series or parallel inductor should be used to compensate the capacitive impedance of the piezoelectric transducer. In this paper, the effect of the series matching inductor on the electromechanical characterist...

Installing force-controlled end-effectors on the end of industrial robots has become mainstream method for robot force control. Additionally, during polishing process, contact stability an important impact quality. However, due to difference between structure and end-effector, in operation, direct control will have transition from noncontact tool workpiece. Although impedance can solve this pro...

Wireless power transfer (WPT) has attracted an ever increasing interest from both industry and academics over the past few years. Its applications vary from small power devices such as mobile phones and tablets to high power electric vehicles, and from small transfer distance of centimeters to large distance of tens of centimeters. In order to achieve a high efficiency WPT system, each circuit ...