Mechanical feedback analysis of a ferrofluid-based module with 2D dynamic traveling waves for tactile display application |
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Affiliation: | 1. Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, CIBERSAM, Spain;2. Institució Catalana de Recerca i Estudis Avançats (ICREA), Spain;3. Departament de Tecnologies de la Informació i les Comunicacions, Universitat Pompeu Fabra, Spain;4. Crossmodal Research Laboratory, Department of Experimental Psychology, University of Oxford, UK |
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Abstract: | With the advances of human-machine systems, tactile displays have become one of the important features for modern products. Tactile feedback can increase working efficiency and help humans to explore new environments or objects by the sense of touch. This study used a 3 × 3 electromagnet array and a ferrofluid bladder to build a tactile display module, which can create smooth and continuous real-time 2-D dynamic traveling waves. The interactions of magnetic fields between electromagnets in the array were used to control the directions of the magnetic lines of force to create different graph patterns. Our user test showed that the overall tactile perception rate was 74% for the 2-D dynamic graph patterns generated using the ferrofluid-based tactile display module. |
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Keywords: | Dynamic traveling waves Tactile feedback Ferrofluid |
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