PROBLEM TO BE SOLVED: To provide an electronic train detector capable of suppressing occurrence of a detection mistake caused by poor electric conduction arising when the rail surface is covered by debris like rusts.SOLUTION: An electronic train detector 100 comprises a receiver filter 310, an input transformer 320, a bandpass filter 330, a power amplifier 340, a feedback transformer 350, a variable inductance part 360, an output transformer 370, a rectifier 380 and a detection relay 390. The variable inductance part 360 is built to satisfy the condition that the inductance of the variable inductance part when a train is detected is less than the inductance when a train is not detected.SELECTED DRAWING: Figure 3

    【課題】あおりの発生を抑制することが可能な踏切制御子を提供する。【解決手段】踏切制御子100は、受信フィルタ310と、入力トランス320と、帯域通過フィルタ330と、電力増幅器340と、帰還トランス350と、可変インダクタンス部360と、出力トランス370と、整流器380と、検知リレー390とを備え、可変インダクタンス部360は、列車検知時のインダクタンスが、列車不検知時のインダクタンスより小さくなるように構成されている。【選択図】図3


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    Title :

    ELECTRONIC TRAIN DETECTOR


    Additional title:

    踏切制御子


    Contributors:

    Publication date :

    2018-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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