Research on 2700 K blackbody color temperature spectral simulation method for calibrating visibility meter
Zhang Jian1,2,3, Sun Jiliang1, Zhang Guoyu1,2,3, Sun Gaofei1,2,3, Liang Jing1, Chong Wei1,4, Yang Xiaotong1
1. School of Opto-Electronic Engineering,Changchun University of Science and Technology,Changchun 130022; 2. Opto-electronic Measurement and Control Instrumentation,Jilin Province Engineering Research Center,Changchun 130022,3. Key Laboratory of Opto-electronic Measurement and Optical Information Transmission Technology,Ministry of Education,Changchun 130022; 4. Meteorological Observation Center of CMA,Beijing 100081
Abstract In view of the current lack of technical means for the calibration of visibility measuring instruments that meet the definition of visibility by the World Meteorological Organization,this paper proposes a 2700 K color temperature spectrum simulation method based on Gaussian spectrum model.According to the 2700 K color temperature spectrum simulation model,the engineering feasible Gaussian spectrum fitting unit full width at half maximum and peak wavelength combination are analyzed.The 2700 K blackbody color temperature spectrum is simulated by using a combination of a Gaussian spectrum fitting unit with a full width of 20 nm,a peak wavelength from 380 nm to 780 nm,and a peak interval of 20 nm.The simulation results provide technical support for establishing a calibration method for visibility measuring instruments that conforms to the definition of visibility defined by the World Meteorological Organization.
Zhang Jian,Sun Jiliang,Zhang Guoyu等. Research on 2700 K blackbody color temperature spectral simulation method for calibrating visibility meter[J]. Meteorological Hydrological and Marine Instrument, 2020, 37(4): 8-10.
2020, Vol. 37 
