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Magnetic Augmented Self-sensing Flexible Electroadhesive Grippers

Research output: Contribution to journalArticle

Original languageEnglish
Article number8662685
Pages (from-to)2364-2369
Number of pages6
JournalIEEE Robotics and Automation Letters
Issue number3
Early online date7 Mar 2019
DateAccepted/In press - 25 Feb 2019
DateE-pub ahead of print - 7 Mar 2019
DatePublished (current) - 1 Jul 2019


Current electroadhesion (EA) grippers cannot be used to lift objects with limited contact areas. Current electromagnetic adhesion (MA) grippers cannot be used to grip non-ferrous materials. Here we combine EA and MA into a monolithic, electrically controllable, flexible, and hybrid Electro/Magneto-adhesive (E/MA), to offer EA grippers augmented with magnetoadhesion and MA grippers augmented with electroadhesion. This E/MA was achieved by exploiting two intertwined coplanar coils inspired by Tesla's flat bifilar coil. By appropriate electrical connections an electromagnetic field is generated - driving magnetic attraction - or an electric field is generated - delivering electroadhesion - or both fields can be generated simultaneously. As a result, the E/MA grippers can not only be used to lift ferrous and non-ferrous materials but also low-density objects such as office paper clips. We also present a customized capacitance measurement method to enable an autonomous material handling system without embedding external sensors. E/MA grippers have the potential to expand the capabilities and impact of soft robotics and industrial gripper systems.

    Research areas

  • Soft sensors and actuators, grippers and other end-effectors, grasping, electroadhesion, exteroceptive sensing, flexible electroadhesive gripper, flexible electromagnetic gripper

    Structured keywords

  • Tactile Action Perception

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