摘要
介绍了FTGS-917型轨道电路的结构组成和基本原理。通过现场对两种频段的放大滤波板信号传输特性进行测试,确认了放大滤波板的具体电路原理以及两种型号放大滤波板的差异,并分析了输出信号幅值与外电路负载的关系。该单元的测试分析结果对于研究FTGS轨道电路有一定的参考价值。
This paper introduces the structure and basic princi- ple of FFGS-917 type of track circuit. Through testing the signal transmission process of two different frequency amplifier and filter boards, the specific circuit principle and the differ- ence between them are obtained. In addition, the relation be- tween the amplitude of output signal and the load of amplifier and filter board are analyzed. The results of this test and analy- sis provide significant value of reference in the investigation of FFGS type of track circuit.
出处
《城市轨道交通研究》
北大核心
2011年第7期72-75,共4页
Urban Mass Transit
关键词
FTGS轨道电路
放大滤波板
传输特性
测试分析
FFGS track circuit
amplifier and filter board
transmission features
test analysis
