Design and analysis of a column type multi-component force/moment sensor

Abstract 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. In order to reduce the interference error of each loading component, this paper proposed a decoupling method with the addition and subtraction processes using signals of 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.