A tactile sensor is a device that collects pressure information from its environment. However, the sensors mimicking a human’s sensory system have not been sufficiently developed for practical application. It is noted that planar flexible tactile sensors have sufficient elasticity and flexibility for attachment to non-planar surfaces. But, they are subjected to an initial strain when attached to a non-planar surface. Therefore an additional calibration process is required. In this study, the fabrication process of a non-planar flexible tactile sensor is proposed, using a direct writing technology as well as an additive manufacturing technology. A curved elastic sensor body was fabricated using mold by the use of a layer-by-layer process. Moreover, the pressure sensitive material which is composed of MWCNTs and PDMA, was dispensed using a direct writing technology. The non-planar flexible tactile sensor was fabricated and tested in terms of an external pressure.
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Improved resistance stability for tactile sensor fabrication and investigation of the dispensing parameters of a nanocomposite material Chaima Fekiri, Song Ho Kim, Ho-Chan Kim, In Hwan Lee Journal of Mechanical Science and Technology.2019; 33(12): 5631. CrossRef
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