The feasibility and mechanical properties of sensor with new type of structure are studied by ways of theoretical analysis and numerical simulation methods. New structure of a six-dimensions force sensor based on strain gauge is proposed

its measuring principle is elaborated by using electrical theory

and also its structural decoupling property is analyzed by means of mathematical methods. After reasonable simplification and equivalent treatment on elastic ball joints

MNF files of sensor fabrication are generated in Hyperworks

then sensor simulation model is established after importing Adams / View. And then mechanical simulation under different force and torque conditions are done separately

response characteristics of sensor are obtained. Theoretical analysis and simulation results show that measuring methods of this structure is reasonable and feasible

and its mechanical property is also good.