2A2-P26 多人数への物体の触力覚情報伝送のための硬さモデル生成(第3報) : レーザーの回転ミラー走査による変位分布測定を用いた表面硬さ分布計測の高速化(非接触センシング)

抄録

In this paper, we propose a method for measurement speed-up of surface compliance distribution using a mirror rotated by a stepping motor. The proposed system pushes a target object by converged ultrasound generated by an ultrasound phased array. This system is able to measure more than 1mm displacement to overcome mechanical noise added by the stepping motor driving the mirror. This performance allows distinguishing liquid surface from solid surface. For further improvement, it is necessary to suppress the mechanical noise. We survey the theoretical scanning speed limitation of displacement distribution measurement taking account of non-zero transition time of the pressed surface and the finite pressing area.