Wireless energizing of piezoelectric component using ultrasonic wave

A new technique of wireless energy transfer to piezoelectric component using ultrasonic wave has been investigated. Finite element simulation has been carried out in order to analyze the operating mechanism of the proposed ultrasonic energy transfer system. It is observed that the piezoelectric receiver gets excited when it captures the generated ultrasonic waves from another piezoelectric transmitter. It is found that maximum excitation occurs in the receiver at the mechanical resonant frequency of the piezoelectric component. The vibration displacement of the receiver depends on the operating frequency, ultrasonic energy and distance between the transmitter and receiver piezoelectric components. The simulated field pattern ensures the feasibility of wireless energy transmission through ultrasonic wave.