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    Tiny Soft Robot can Split into Tinier Bits then Reassemble after Passage Through Small Spaces

    September 21, 2022, Categories  Physics, Technology/Electronics

    Tiny soft robot can be split into tinier bits to allow for passage through small spaces
    Overview of trans-scale maneuver and scale reconfiguration strategies of the scale-reconfigurable miniature ferrofluidic robots (SMFRs). (A) Trans-scale control of the SMFR: locomotion of the centi-FR, milli-FR, and micro-FR based on magnetic gradient, both magnetic gradient and torque, and magnetic torque only, respectively. (B) Response behaviors of ferrofluid droplets in magnetic fields. (C) The SMFR is manipulated by a custom-designed magnetic actuation system (the M3RA system) composed of four electromagnets, a spherical permanent magnet (SPM), and a motorized translation stage. To easily observe the internal composition of the system, we hide a quarter of the structure...
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