Ultrasonic Wireless Power and Data Transmission Technology Across Conical Metal Shell

Aiming to address the issue of wireless power and data transmission in closed conical metal shell, the ultrasonic transducer is introduced into the system. The system for ultrasonic transmission is constructed with a pair of radially polarized circular tube transducers, a metal spacer block attached to one of the transducers, and a conical shell. The finite element analysis software COMSOL is utilized to investigate the modal changes in the system during power transmission, while also analyzing the impact of receiving transducer height and relative position on power transmission. Ultrasonic data communication experimental results demonstrate that reliable data can be transmitted across the conical shell using binary frequency shift keying modulation and demodulation techniques at a communication rate reaching 1kbps.