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| 引用本文： | 邢灿华,张德详.??·??????????????????[J].大地测量与地球动力学,2012,32(6):160-163. |
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| 作者姓名： | 邢灿华 张德详 |
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| 作者单位： | 1. 南京工程学院自动化学院,南京,211167
2. 扬州莱达光电技术有限公司,扬州,225127 |
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| 摘 要： | ????????μ???·???????????????????????????????, ???????????????????????????????????????????????????????????з???????????????????????????????????????????????1?????????????μ?????仯????????????????????????????????????1?????仯?????????????????????????????????
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| 关 键 词： | ????? ???? ??????? ????? ????? |
DESIGN OF LASER DETECTING INSTRUMENT FOR RAILWAY TRACK FLATNESS |
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| Xing Canhua,and Zhang Dexiang.DESIGN OF LASER DETECTING INSTRUMENT FOR RAILWAY TRACK FLATNESS[J].Journal of Geodesy and Geodynamics,2012,32(6):160-163. |
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| Authors: | Xing Canhua and Zhang Dexiang |
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| Institution: | 1)School of Automation,Nanjing Institute of Technology,Nanjing 2111672)Lada Opt-E’ Technology Co.Ltd,Yangzhou 225127 |
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| Abstract: | This paper introduces a new laser detecting instrument for railway track flatness, it takes a silicon photocell as photoelectric receiver, and then the laser signal is converted into electric signal.In the instrument, the weak electrical signal is amplified by high power low noise amplifier, in which the variable magnification is controled by single chip microcomputer, thereby successfully solved the difficult problem that such as the different light source modulation signal amplitude, near and distant light signal strength caused by different signal magnitude varying considerably. Thus, the high accuracy detection has been achieved for different kinds of laser light source and light intensity changes in far and near distance. The adaptability and the detection performance of the receiver are ensured. |
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| Keywords: | tamping machine laser programmable amplifier single chip microcomputer detecting instrument |
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