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MA: Fachverband Magnetismus

MA 60: Magnetic Materials: Applications and Multielement Bulk Materials

MA 60.1: Vortrag

Freitag, 24. März 2017, 09:30–09:45, HSZ 101

Magnetic e-skin enables both touch and non-touching sensitivities — •J. Ge, X. Wang, G. S. Canon Bermudez, J. Fassbender, and D. Makarov — Helmholtz-Zentrum Dresden-Rossendorf e.V., Dresden, Germany

Humans can interact with unstructured surroundings precisely with the aid of ears, eyes, and skin. Ears and eyes help humans interact with surrounding objects though a non-touching mode, while human skin provides the touch feeling for humans to sense the temperature of objects, strain and pressure on skin, friction for holding objects, among others. Interest of realizing both touch and non-touching sensing functions of humans is motivated by the promise of creating advanced humanoid robots, biomedical prostheses, surgical electronic gloves and wearable health monitoring devices [1, 2]. Herein we present a magnetic skin that not only is sensitive to pressure, flexion, and strain, but also has the ability to detect the position and movement of magnetic objects in a non-touching sensing mode. The magnetic skin is a stack of a wrinkle GMR sensor layer and a pyramid-structured magnetic foil. The GMR sensor enables the sensing of the movement of remote magnetic objects (non-touching), and distance change between GMR sensor and magnetic foil caused by mechanical deformation make the magnetic skin be sensitive to pressure, stretch and flexion (touch mode). This magnetic skin will possess great potential application in future intelligent products.

1. Z. Q. Ma et al. Science 333, 830-831, (2011). 2. Z. A. Bao et al. Adv. Mater. 25, 5997-6037, (2013).