计量学报2026，Vol.47Issue(1)：85-93,9.DOI:10.3969/j.issn.1000-1158.2026.01.11
激光雨滴谱仪测试方法研究
Research of Test methods for Laser Raindrop Spectrometer
摘要
Abstract
Based on the laser raindrop spectrometer tests,a new method for testing the raindrop diameter and velocity errors and evaluating the accuracy of precipitation phenomenon recognition is proposed,and a raindrop simulation device that can simulate raindrops of different diameters and adjust the falling height is designed.Splash pattern was used to check the uniformity of the simulated raindrops and the results showed less than 5%error for the same type of raindrops.The relative errors in diameter and velocity measured by the raindrop spectrometer were 7.4%and 6.6%.A precipitation phenomenon simulation laboratory was established to simulate drizzle,rain,snow,and rain mixed with snow,and to achieve simulation of different rainfall intensities.Simulating different rainfall intensities,the measured values of the raindrop spectrometer were less than those obtained by manual measurement,with maximum deviations of 17.8%for rainfall and 14.3%for rainfall intensity.The calibration function was obtained based on the manual measurements,and the maximum deviation decreased to 8.5%after calibration.In addition,when simulating precipitation with different diameters,the raindrop spectrometer could draw the corresponding raindrop spectrum.关键词
流量计量/激光雨滴谱仪/模拟装置/降水现象/雨滴直径/雨滴速度Key words
flow measurement/raindrop spectrometer/simulation device/phenomenon of precipitation/raindrop diameter/raindrop velocity分类
通用工业技术引用本文复制引用
张世国,王敏,方海涛,王毛翠,汪玮,胡顺星..激光雨滴谱仪测试方法研究[J].计量学报,2026,47(1):85-93,9.基金项目
安徽省自然科学基金(2308085MD128) （2308085MD128）
中国气象局创新发展专项(CXFZ2022J064) （CXFZ2022J064）
中国气象局大气探测重点开放实验室课题(2022KLAS04Z) （2022KLAS04Z）
