静電気式粉体流量センサーの耐久性・信頼性に関する研究

概要

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A new monitoring system has been developed to observe the state of a particle-jetting device which is used to prevent wheel slip in a railway vehicle. The particle-jetting detection ability of the proposed monitoring system was examined by conducting bench tests and vehicle running tests. The result of experimental study shows that the proposed system has sufficient detection ability even for the vehicle running condition. During the jetting of ceramic particles, hard ceramic particles collide with the flow detecting device, and wear away the sensing device. The decrease of detection performance was evaluated by the durability tests which were conducted with repeated jetting of ceramic particles. The result of durability test shows that the proposed system has sufficient detection performance after the repeated jetting which is equivalent to twenty years of vehicle operation, and that the proposed system can be used in real operating vehicles.