In this study, both the mechanical and electronics designs are discussed and analyzed. Particularly, using finite element analysis technique the mechanical sensitivity and maximum stresses of the torque sensor are examined. | Journal of Automation and Control Engineering Vol. 6, No. 1, June 2018 Development of Wireless Clamp-on Torque Transducer for Rotating Shaft Ali Mustafa School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China Email: mustafa11@ Xiongzhu Bu* and Wei Han School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China Email: buxu105@, hwnjust@ al. developed a novel wireless transducer by using strain gauges on the surface of the rotating shaft [8]. Similarly, Radionov implemented on-line elastic torque monitoring system consist of two bridged resistance strain gauges [9]. Placement of strain gauges have also a direct relation to the sensitivity of the torque measurement, Qingsong Xu, designed a large-range rotary stage whereas, conducted FEA to enhance sensitivity and best positioning of strain gauges [10]. Micro-electromechanical systems using strain gauges are also introduced in various applications for torque measurement [11], [12]. In aforementioned methods of torque sensors strain gauges have to be glued directly on the rotating shaft. Moreover, the problem with glued strain gauges is that they are very hard to paste accurately and its mechanical capability is also questionable. Another type of these sensors required an additional piece between the rotating shaft and load. Because of the required additional part shaft needs to be cut and assembling a wired torque measurement unit into the system is a rather complicated, time-consuming, and in some cases even impossible task. In addition, it affects the strength and operational capability of the system [13]. In this paper, a wireless clamp-on torque measurement system is studied, the benefit includes, wireless transmission, fast installation and no need to install additional part with a rotating shaft. The installation is carried out directly on the surface of the rotating shaft. This measurement system .
