| 车辆冲击试验速度测量装置研制 |
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| 引用本文： | 张剑锋,倪文波.车辆冲击试验速度测量装置研制[J].中国测试技术,2011,37(1). |
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| 作者姓名： | 张剑锋 倪文波 |
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| 作者单位： | 西南交通大学机械工程学院,四川,成都,610031 |
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| 基金项目： | 国家大学生创新性实验计划子项目(081061313) |
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| 摘 要： | 针对采用轨道贴片法测量冲击速度时,操作繁琐、误差大且不可实时显示速度等缺点,研制了一套车辆冲击试验速度测量装置。装置以MCS-51单片机为核心,通过测量冲击车辆驶过冲击点前固定间距的时间计算冲击速度,且可实现冲击速度值的实时显示与无线传输。经实验室速度标定试验,结果表明速度测量装置具有较高精度,可为车辆冲击试验提供一种较准确的速度测量方法。
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| 关 键 词： | 铁路运输 冲击速度测量 单片机 车辆冲击试验 接近开关 无线传输 |
Development of velocity measuring device for vehicle bumping test |
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| ZHANG Jian-feng,NI Wen-bo.Development of velocity measuring device for vehicle bumping test[J].China Measurement Technology,2011,37(1). |
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| Authors: | ZHANG Jian-feng NI Wen-bo |
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| Affiliation: | ZHANG Jian-feng,NI Wen-bo(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to overcome the disadvantages of strain-gauging method in bumping velocity measurement on rail track,a velocity measuring device for vehicle bumping test was developed.Under the control of a MCS-51 single chip microcomputer,the impact velocity could be calculated with the device by measuring the time that the vehicle needs to pass through a fixed distance before the impact point.Besides,the functions of real-time display and wireless transmission were realized.The results of velocity calibration ex... |
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| Keywords: | railway transportation bumping velocity measuring single chip microcomputer vehicle bumping test proximity switch wireless transmission |
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