Design and Analysis of a Column Type Multi-Component Force/Moment Sensor

摘要

A sensing element of column type was devised as a multi-component force/moment sensor by attaching strain gages. The ratio of length over diameter (L/D) for the sensing element was designed analytically and verified by finite element analysis. The fabricated sensor was evlauated by using a deadweight force/moment calibration machine within Korea Research Institute of Standards and Science(KRISS). The interference errors between force and moment components were minimized by addition and subtraction processes of signals obtained from strain gages. Finally the calibration showed that the interference error of F_x component was less than 7.3% FS, and in case of other components, 5.0% FS.