To study the application of torque sensor for the joint design of chemical manipulator and realize the integrated design of the elastic body and signal processing circuit. Based on a new type of torque sensor with lightweight manipulator flexible joint, a three-dimensional model of elastic structure is built on this basis and then the finite element analysis is conducted on this design. The finite element analysis of Workbench is used and it can be seen from the simulation results that the elastomer structure design can effectively meet the strength requirements of chemical materials. It can be discovered from the calibration and testing of the sensor designed in this paper that the new torque sensor has good static characteristics and can well meet the usage requirement of flexible joints.
