• Title/Summary/Keyword: Murray's loop

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Design and implementation of ESD cable Disconnection Monitoring System (ESD 접지선 단선 모니터링 시스템 설계 및 구현)

  • Seong, Jung-Mo;Chung, Young-Suk;Park, Koo-Rack
    • Journal of the Korea Convergence Society
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    • v.8 no.8
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    • pp.77-82
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    • 2017
  • In the splay manufacturing process, conveyor systems are widely used for conveying panels. In this conveyor, a large number of grounding lines are used in order to prevent a product failure due to static electricity. In many cases, the grounding line is disconnected due to the rotation of the transporting roller or curling, leading to product failure. In order to solve such a problem, there is a growing need for a system capable of detecting disconnection of a ground wire in real time. Therefore, in this paper, we propose a disconnection monitoring system of ESD (Electro-Static Discharge) ground wire caused by friction between the conveyor drive part and the panel. The proposed system is a monitoring system that can detect disconnection and disconnection of ground wire using ATmega 2560 and Wheatstone Bridge circuit. It can detect disconnection of ground wire immediately and can take measures to reduce the defect rate due to static electricity. The system proposed in this paper is expected to be applicable to the production and test equipments of all industries where the ground wire is used.