摘要
【目的】系统梳理造成雨量误差不确定性的主要来源,有效改善雨量传感器的误差状况。【方法】通过在不同环境条件下,分别用JJS2型雨量校准仪、JJS1型翻斗雨量校准仪,对随机抽取的两台翻斗式雨量传感器开展检定试验,运用丰富的第一手检测数据,逐一分析了温度、湿度、隔板反爬与雨量值之间的关系。【结果】基本确定了误差的主要来源是隔板反爬,并且通过对隔板的改造与调整,两台试验用翻斗式雨量传感器合格率达到了100%。【结论】通过该方案能有效调整翻斗式雨量传感器的误差,对提高气象雨量观测的准确性有极大的提升。
[Purposes]In order to effectively judge the main source of uncertainty of rainfall error,and effectively improve the error condition of rainfall sensor.[Methods]Under different environmental conditions,the JJS2 rainfall calibrator and JJS1 tipping rainfall calibrator were used respectively to carry out verification experiments on two randomly selected tipping bucket rain sensors,and the relationship between temperature,humidity,diaphragm anti climbing and rainfall value was analyzed one by one using abundant first-hand detection data.[Findings]It was basically determined that the main source of error was the diaphragm reverse climbing,and through the transformation and adjustment of the diaphragm,the qualification rate of the two experimental tipping bucket rain sensors reached 100%.[Conclusions]The scheme can effectively adjust the error of the tipping bucket rain sensor and greatly improve the accuracy of meteorological rainfall observation.
作者
李常春
LI Changchun(Jiangxi Province Meteorological Detection,Nanchang 330001,China)
出处
《河南科技》
2023年第12期55-61,共7页
Henan Science and Technology
基金
江西省气象科技重点项目(JX2020Z01)。
关键词
单翻斗
雨量传感器
测量误差
校准
single tip bucket
rain sensor
measurement error
calibration
