2A2-P26 Generating Compliance Model for Haptic Information Transmission to Multiuser (Third Report) : Measurement Speed-up of Surface Compliance Distribution Using Rotated Mirror Laser Scanning for Displacement distribution Measurement(Non-contact Sensing)

Abstract

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.