Research of Magnetic Supply Unit of Wireless Torque Sensor

Abstract

The authors developed an electromechanical conversion device for the powering up of metering systems and low power actuators installed on shafts or in hard-to-reach locations. This device produces power via the relative rotation (movement) of objects with a constant magnetic field and features an electric power storage system and a wireless data channel. This allows for the complete elimination of power cords. To study the technical specifications and precision of the device in question, and to determine the degree of impacts of various parameters on metering, the authors designed a magnetic power system and produced a laboratory bench. The authors performed three series of experiments determining both qualitative and quantitative parameters of the magnetic power module. The authors obtained the effective power generation range dependencies of the magnetic power module and various permanent magnetic field sources, and the shaft speed for various types of magnets, as well as the dependencies between the voltage and power output of a magnetic generator and the rotation speed at various distances to the magnet. The developed magnetic power module can energize the metering systems on shafts with significant transverse mobility.