| 列车运行速度及走行距离测试的原理分析 |
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| 引用本文： | 黄彦民.列车运行速度及走行距离测试的原理分析[J].机车电传动,1997(5):37-40. |
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| 作者姓名： | 黄彦民 |
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| 作者单位： | 广州铁路集团公司科研所 |
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| 摘 要： | 推导了列车运行速度、走行距离与测速发电机输出电压频率的数学关系式，给出了利用ＣＭＯＳ数字集成电路和频率合成原理实现上述关系的电路框图，并对其速度接口电路、轮径输入方法及频率合成电路、分频电路和ＢＣＤ比例乘法器电路、显示电路、基准频率发生电路、电源电路等作了分析与说明。通过大量测量，获得了准确可靠的数据，表明电路设计是正确的。
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| 关 键 词： | 运行速度 走行距离 电路框图 分析 列车 测试 |
Principle analysis of measurements of the train running speed and distance |
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| Scientific Research Institute of Guangzhou Railway Group Co.Ltd.Principle analysis of measurements of the train running speed and distance[J].Electric Drive For Locomotive,1997(5):37-40. |
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| Authors: | Scientific Research Institute of Guangzhou Railway Group CoLtd |
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| Institution: | Guangzhou 510600 |
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| Abstract: | The mathematical relation formula is derived from the train running speed,distance and the output voltage frequency of tacho generator.The circuit diagram is given that realizes the relations by utilizing the principle of CMOS digital integrated circuit and frequency composition.Analysis and illustration are made regarding interface circuit,wheel diameter input method,frequency composition circuit,frequency dividing circuit,BCD proportion multiplier circuit,display circuit,base frequency generating circuit and power supply circuit.Precise and reliable data have been acquired through numerous measurements which prove the correctness of the circuit design. |
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| Keywords: | running speed running distance circuit block diagram analysis DF 4 locomotive |
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