Simultaneous Wireless Power and Data Transmission Over One Pair of Coils for Sensor-Integrated Rotating Cutter

Abstract

Tool condition monitoring is becoming particularly important in the cutting process. More and more researchers start to integrate the sensors into the tool holder due to its convenient use and wide applicability. However, it is difficult to transmit out the condition data and supply stable power to the sensor-integrated systems through the traditional wired way as the tool holder is under high-speed rotation in milling or drilling process. In this paper, a novel simultaneous wireless power and data transfer system over one pair of coils for sensor-integrated rotating cutter is presented, and the eddy effect caused by the metal handle that impacts the system performance is solved with ferrite shielding. To transmit out the cutting condition data wirelessly, the synchronous detection and envelope detection technology are employed. Meanwhile, the synchronous rectification technology is adopted to improve the performance of the wireless power transfer. Eventually, the experimental platform has been set up and the cutting tests have also been carried out. The results show that the designed new wireless power and data transfer system over one pair of coils is stable and practical to track and transmit out the condition data of the rotating cutter. INDEX TERMS Tool condition monitoring, rotating cutter, simultaneous wireless power and data transfer, one pair of coils, ferrite shielding.

Review on Key Technologies and Development of Magnetic Coupling Resonant-Dynamic Wireless Power Transfer for Unmanned Ground Vehicles

“…According to the different types of communication modules, short-range wireless communication can be divided into Wi-Fi, ZigBee [51], Bluetooth, infrared, 4G, and 5G, etc. Dual-channel transmission is divided into the magnetic-field eccentric type [52], the magnetic-field coaxial type [53], and the electric-field type [54], according to the nature and location of the data transmission channel. The shared-channel transmission mode is divided into the amplitude-modulation type [55], the tuning type [56], the time-division multiplexing (TMD) type, and the frequency-division multiplexing (FMD) type [57], according to the different data injection methods.…”