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http://dx.doi.org/10.5302/J.ICROS.2011.17.2.131

Polymer Based Slim Tactile Sensor: Optimal Design and New Fabrication Method  

Lee, Jeong-Il (Nagoya University)
Sato, Kazuo (Nagoya University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.17, no.2, 2011 , pp. 131-134 More about this Journal
Abstract
In this study, we propose an optimal design and new fabrication method for a slim tactile sensor. Slim tactile sensor can detect 3-axial forces and has suitable flexibility for intelligent robot fingers. To amplify the contact signal, a unique table-shaped structure was attempted. A new layer-by-layer fabrication process for polymer micromachining that can make a 3D structure by using a sacrificial layer was proposed. A table-shaped epoxy sensing plate with four legs was built on top of a flexible polymer substrate. The plate can convert an applied force to a concentrated stress. Normal and shear forces can be detected by combining responses from metal strain gauges embedded in the polymer substrate. The optimal positions of the strain gauges are determined using the strain distribution obtained from finite element analysis.
Keywords
tactile sensor; table-shaped structure; finite element analysis; polymer micromachining; layer-by-layer fabrication process;
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