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气象:2013,39(2):249-252
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风速检定中对标准风速测量值的影响量分析
(1.甘肃省气象信息与技术装备保障中心,兰州 730020;2.宁夏大气探测技术保障中心,银川 750002)
Analysis of Influence Factors on the Standard Wind Speed Measurements in the Calibration of Wind Instrument
(1.Meteorological Information and Technology and Equipment Support Centre of Gansu, Lanzhou 730020;2.Meteorological Observation and Technology Support Centre of Ningxia, Yinchuan 750002)
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投稿时间:2011-11-30    修订日期:2012-07-17
中文摘要: 针对风速仪检定中对标准风速测量值影响的量进行分析,找出了主要影响量,并加以消除,使检定结果更加真实、可靠。利用JJG431 86检定规程中已知的计算公式进行论证分析,并用实例进行验证。结果表明,实验室温度对标准风速的测量值影响大,应加以温度控制,在检定一台风速仪前后,实验室的温度变化不应该超过3℃。而空气密度修正系数查算表过于粗略,对标准风速的影响值也不可忽视,应该用公式直接计算进行误差消除。
Abstract:This paper mainly aims at wind speed calibration by standard wind speed measurements and its influence factor analysis. First, we find out the main influence factors, and then eliminate them, thus make the calibration results more real and reliable. The calculation formula in JJG431 86 verification regulation is used for argument analysis, and the examples are used for verification. The results show that laboratory temperature is the great factor of influence on the standard wind speed, thus it must be temperature controlling. In the calibration of an anemometer, the temperature change of the laboratory should not be more than 3℃. The air density correction coefficient in the table is too sketchy, and the influence values on standard wind speed can not be ignored, therefore we should use the formula to calculate directly and eliminate errors.
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基金项目:甘肃省气象信息与技术装备保障中心开放式科技创新基金项目资助
引用文本:
党选发,刘永强,张红英,黄蕊,韩玉婷,宋媛,牛玉质,2013.风速检定中对标准风速测量值的影响量分析[J].气象,39(2):249-252.
DANG Xuanfa,LIU Yongqiang,ZHANG Hongying,HUANG Rui,HAN Yuting,SONG Yuan,NIU Yuzhi,2013.Analysis of Influence Factors on the Standard Wind Speed Measurements in the Calibration of Wind Instrument[J].Meteor Mon,39(2):249-252.