| 通用型旋桨流速仪干式检测抽样检定 |
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| 引用本文： | 杨汉塘,赵造申,纪春学,董明,杨立丽,王为朴,秦斌,王沙宁.通用型旋桨流速仪干式检测抽样检定[J].水利水文自动化,2012(2):46-52. |
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| 作者姓名： | 杨汉塘 赵造申 纪春学 董明 杨立丽 王为朴 秦斌 王沙宁 |
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| 作者单位： | 1. 水利部南京水利水文自动化研究所,江苏 南京 210012
2. 华北水文仪器检测中心,河北 石家庄 050000 |
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| 摘 要： | 对? LJ20-1A?型旋桨流速仪抽样检定做可行性验证总结.用“干式法”检测设备作为槽检抽样检定的辅助工具,检测旋桨螺旋角? A、旋转支承摩阻力矩? M,按? A?值精细分组,科学抽样,在华北水文仪器检测中心检定.验证表明,总体精度高,中高、低速直线公式标准化,生产、使用都很方便.
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| 关 键 词： | 旋桨流速仪 干式 检测 抽样检定 |
Calibration of Universal Propeller Type Current Meter under Random Sampling by Dry Testing Method |
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| YANG Hantang,ZHAO Zaoshen,JI Chunxue,DONG Ming,YANG Lili,WANG Weipu,QIN Bin,WANG Shaning.Calibration of Universal Propeller Type Current Meter under Random Sampling by Dry Testing Method[J].Automation in Water Resources and Hydrology,2012(2):46-52. |
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| Authors: | YANG Hantang ZHAO Zaoshen JI Chunxue DONG Ming YANG Lili WANG Weipu QIN Bin WANG Shaning |
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| Affiliation: | 1. Nanjing Automation Institute of Water Resources and Hydrology, the Ministry of Water Resources, Nanjing 210012, China; 2.North China Inspection and Testing Center of Hydrometric Instrument, Shijiazhuang 050000, China) |
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| Abstract: | The article makes a summary on verification of feasibility study of model LJ20-1A propeller type current meter under random sampling. The dry test equipment is used for the calibration as an auxiliary tool of the calibration tank. The calibration is done by north china inspection and testing center of hydrometric instrument, helical angel of propeller （A） and bearing friction moment （M） are given, and scientific sampling is made according to A. The verification shows that the meters are of high precision, linear equations for middle-high and low velocities are standard, and it is convenient for production and use. |
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| Keywords: | propeller type current meter dry testing method calibration random sampling |
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