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Journal of Intelligent Material Systems and Structures
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1045389X09348256v1
20/17/2029    most recent
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Development of a Distributed Force Detectable Artificial Skin Using Microbending Optical Fiber Sensors

Jin-Seok Heo

Samsung Electronics, San 16, Banwol-dong, Hwasung-city, Gyeonggi-do, 445-701 South Korea

Ki-Young Kim

Department of Mechanical Engineering, KAIST, Guseong-dong, Yuseong-gu, Daejeon, 305-701 South Korea

Jung-Ju Lee

Department of Mechanical Engineering, KAIST, Guseong-dong, Yuseong-gu, Daejeon, 305-701 South Korea, leejungju{at}kaist.ac.kr

This article describes a skin-like tactile sensor system that can detect a distributed force using microbending optical fiber sensors. In this design, optical fibers are used both as actual force elements and as signal-transmission media. The tactile array sensor is formed by appropriately arranging fibers into two overlapping layers, forming a 2D grid of fibers. When force is imparted to a given fiber taxel, small distortions (microbends) appear in the stressed fibers, resulting in decreases in the transmitted light intensity in these fibers. A prototype sensor of this type has been fabricated and tested. Comparison with a conventional tactile sensor reveals that the proposed tactile sensor provides outstanding performance and many advantages such as water resistive characteristics, high durability, and simple wiring.

Key Words: artificial skin • microbending optical fiber sensor • tactile sensor • uniaxial force sensor array.

This version was published on November 1, 2009

Journal of Intelligent Material Systems and Structures, Vol. 20, No. 17, 2029-2036 (2009)
DOI: 10.1177/1045389X09348256
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