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电子调制的激光相干粗糙度测量技术研究

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null, . 电子调制的激光相干粗糙度测量技术研究[J]. 激光技术, 2016, 40(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2016.03.031
引用本文: null, . 电子调制的激光相干粗糙度测量技术研究[J]. 激光技术, 2016, 40(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2016.03.031
WANG Huilin, DONG Yuanli. Study on measuring technology of roughness based on electronic modulation laser coherence[J]. LASER TECHNOLOGY, 2016, 40(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2016.03.031
Citation: WANG Huilin, DONG Yuanli. Study on measuring technology of roughness based on electronic modulation laser coherence[J]. LASER TECHNOLOGY, 2016, 40(3): 447-450. DOI: 10.7510/jgjs.issn.1001-3806.2016.03.031

电子调制的激光相干粗糙度测量技术研究

详细信息
  • 中图分类号: TN247

Study on measuring technology of roughness based on electronic modulation laser coherence

  • 摘要: null
    Abstract: The reliability and the usability of mechanical products largely depend on their surface roughness. In order to achieve long-distance measurement of surface roughness of mechanical parts, a method of electronic direct modulation laser coherence based on laser Doppler effects was put forward to measure the surface roughness. The application of laser Doppler effects can reduce influence of working distance. The speed of measurement was improved and the cost was reduced by using electronic direct modulation method. By using coherent method, alternative phase lock amplification was realized and the system noise was effectively controlled too. The experimental results show that the uncertainty degree of the measurement system can be reached 1 after controlling the statistical error and calibrating the experiment data during measurement process. The study has a certain guiding significance on the measurement of surface roughness.
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出版历程
  • 收稿日期:  2015-02-08
  • 修回日期:  2015-05-27
  • 发布日期:  2016-05-24

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