Study on the Inaccuracies of Air Velocity Measured by Pitots with Different Outer Diameter in a Air Duct

机译：风管内外径不同的皮托管测量风速误差的研究

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The inaccuracies for air velocity measured by Pitots with different diameter have been demonstrated by several experiments. It is defined that the measurement ranges of air velocity by Pitots with different outer diameter. Experiments show that: measurements by Pitot are larger than the true values. The measurement error of air velocity will be smaller if using the Pitot with a smaller outer diameter. The simplified function of correction coefficient and ratio of diameters is deduced by theoretical analysis. The maximum error of correction coefficients is 0.94%, which gained by the simplified function expression is compared with experimental data.

机译：通过几个实验证明了具有不同直径的皮特测量的空气速度的不准确性。它定义了具有不同外径的皮特的测量范围。实验表明：皮特的测量大于真实值。如果使用具有较小外径的皮托特，则空气速度的测量误差将更小。通过理论分析推断出校正系数和直径比率的简化函数。将简化功能表达的校正系数的最大误差为0.94％，与实验数据进行比较。

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《2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring》|2011年|p.1815-1818|共4页
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作者
Hubiao Wu; Zhijun Zou; Chen Huang; Fei Wang; Hao Li; Zhongchao Wang;
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正文语种
中图分类计算机的应用;
关键词
Air velocity; Correction coefficient; Diameter; Measurement error; Pitot;

机译：空气速度;修正系数;直径;测量误差;皮托;

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Study on the Inaccuracies of Air Velocity Measured by Pitots with Different Outer Diameter in a Air Duct

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