초록 |
Magnetically active soft robots have advantages of remote and contactless manipulation via magnetic field. This untethered soft robotic system can avoid weight penalty from additional devices and distance restriction from wire connections. In this work, we prepared magnetically responsive polymer composites by inclusion of ferromagnetic carbonyl iron particles into polydimethylsiloxane(PDMS) matrix. The motion of helical soft robot was manipulated by a neodymium permanent magnet placed on a uniaxial moving stage. Displacement of magnet at uniform velocity resulted in intermittent motility of helical soft robots as a consequence of force balance between rolling friction and momentum generated by the magnetic field. In this presentation, we compare the maneuverability of the untethered soft robot against tethered soft robot and untethered rigid robot, and discuss various parameters affecting the magnetomotility of the helical soft robots. |