一种大气能见度光电测量系统半自动定标方法
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摘要
大气能见度是气象学中重要的研究对象,它既关系到日常交通中的安全保障,也表征了大气环境监测中的污染程度。大气能见度的测量一般分为透射式和散射式,不同的测量方式所用的定标方法也不一样。传统的透射式能见度仪的定标通常采用人工校准的方法,难以保证校准精度并且维护成本高。针对大气能见度光电测量系统,提出了一种半自动定标方法,有效降低了人工成本,提高了校准精度。
Atmospheric visibility is an important research object in meteorology.It not only relates to the safety of daily traffic,but also represents the pollution degree in the atmospheric environmental monitoring.The measurement of atmospheric visibility is generally divided into transmission type and scattering type,and the calibration methods used in different measurement methods are also different.The traditional calibration method of transmission visibility meter usually adopts manual calibration method,which is difficult to ensure the calibration accuracy and has high maintenance cost.Aiming at the photoelectric measurement system of atmospheric visibility,this paper proposes a semi-automatic calibration method,which effectively reduces the labor cost and improves the calibration accuracy.
Atmospheric visibility is an important research object in meteorology.It not only relates to the safety of daily traffic,but also represents the pollution degree in the atmospheric environmental monitoring.The measurement of atmospheric visibility is generally divided into transmission type and scattering type,and the calibration methods used in different measurement methods are also different.The traditional calibration method of transmission visibility meter usually adopts manual calibration method,which is difficult to ensure the calibration accuracy and has high maintenance cost.Aiming at the photoelectric measurement system of atmospheric visibility,this paper proposes a semi-automatic calibration method,which effectively reduces the labor cost and improves the calibration accuracy.
引文
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[2] 李春亮,曲来世,张勇,等.能见度测量技术100问[M].北京:气象出版社,2009.
[3] VAISALA O.Vaisala Transmissometer LT31 [EB/OL],[2010-06-20],http://www.vaisala.com/weather/products/lt31.html.
[4] BOND T C,ANDERSON T L,CAMPBELL D.Calibration and intercomparison of filter-based measurements of visible light absorption by aerosols[J].Aerosol Science & Technology,1999,30(6):582-600.
[5] HAN Y,GAO P,HUANG J L,et al.Ground-based synchronous optical instrument for measuring atmospheric visibility and turbulence intensity:theories,design and experiments[J].Optics Express,2018,26(6):6833-6850.
[6] MA Y.High-precision apparatus for visibility and present weather by british BIRAL HSS[J].Meteorological Hydrological & Marine Instrument,2005,9(2):47-50.
[7] THIESSEN A H.Measuring visibility[J].Scientific American,1919,47(6):401.