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12 April 2017 Development of a slip sensor using separable bilayer with Ecoflex-NBR film
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Polymer film-type slip sensor is presented by using novel working principle rather than measuring micro-vibration. The sensor is comprised of bilayer with Ecoflex and NBR(acrylonitrile butadiene rubber) films divided by di-electric. When slip occur on surface, bilayer have relative displacement from each other because friction-induced vibration make a clearance between two layers. This displacement can be obtained by capacitance difference. CNT(carbon nanotube) was employed for electrode because of flexible and stretchable characteristics. Also normal and shear force can be decoupled by the working principle. To verify developed sensor, slip test apparatus was designed and experiments were conducted.
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Sung Joon Kim, Hyungpil Moon, Hyouk Ryeol Choi, and Ja Choon Koo "Development of a slip sensor using separable bilayer with Ecoflex-NBR film", Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 1016835 (12 April 2017);

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