Table of Contents
Materials, Volume 13, Issue 5 (March-1 2020) – 239 articles
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Cover Story (view full-size image) This figure shows a controllable tactile device capable of realizing repulsive forces from soft [...] Read more. This figure shows a controllable tactile device capable of realizing repulsive forces from soft human tissues. The device is fabricated by immersing a magnetorheological (MR) fluid containing micro-sized iron particles into porous polyurethane form (MRP tactile device). The surgeon who conducts robot-assisted surgery can feel the softness the operating organs directly and hence the surgical accuracy can be enhanced. This is possible due to the inherent characteristics of MR fluid whose apparent viscosity is controllable as a function of the magnetic flux intensity. In the figure (1) shows the schematic of the operating principle of the proposed tactile device, and (b) and (c) presents the iron particles structures without the magnetic field and with the magnetic field, respectively. The column-like structures shown in (a) increases the yield stress of MR fluid and hence the repulsive force of the device. View this paper.