HIGH FREQUENCY INDUCTION PREVENTION DEVICE FOR ELECTRONIC TRAIN DETECTOR AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To prevent high frequency induction generated on an open track circuit electronic train detector by making a rail and a power source line to an aerial line at low cost. SOLUTION: The high frequency induction prevention device for a electronic train detector has a filter connected to respective track terminals 17 of the open track circuit electronic train detector 1 and a power source terminal 36 in series respectively and attenuating the higher frequency than a signal frequency of the open track circuit electronic train detector. The filter is constituted by the one in which a coil is wound on a magnetic core of iron-silicon-aluminum. COPYRIGHT: (C)2006,JPO&NCIPI