摘要
介绍钢轨参数等效四端网络模型,对选取的50 m钢轨等效单元的参数值进行计算,用硅胶粘接和环氧树脂灌封工艺对电感进行封装,器件集成焊接在PCB板上,采用不锈钢金属外壳等工艺措施保证模拟装置的可靠性。测试实际模拟装置参数,误差保证在±2%范围内,能够满足实际测试需要。
The equivalent four-terminal network model of rail parameters is introduced.The parameter values of a 50 m rail equivalent unit are calculated.Silica gel bonding and epoxy resin potting are used to seal the inductors,integrated devices are welded onto PCB boards,and a stainless steel shell,along with other technological measures,is adopted to ensure the reliability of the simulation device.By testing the actual simulation device parameters,it is found that the errors are guaranteed to be within the range of±2%,which meets the test requirements.
出处
《铁路通信信号工程技术》
2024年第S1期63-66,共4页
Railway Signalling & Communication Engineering
关键词
轨道电路
四端网络
π型模型
钢轨电气参数
模拟装置
track circuit
four-terminal network
π-type model
rail electrical parameters
simulation device
