軸受によるトルクセンシングユニットの他軸干渉低減

抄録

This study aims at improving the measurement accuracy of a torque sensor developed by the authors. It measures torsional deformation of a bar without contact by a photo-interrupter. A known problem is an other-axis interference, in which the bending deformation is wrongly accounted for as the torque about the axis. A simple but effective idea is to put a bearing in the sensor unit to support the torsion bar against the bending load. The efficacy of the idea was experimentally evaluated.