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多声路超声流量计积分模型的校准方法研究 被引量:3

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摘要 多声路超声流量计属于速度式流量计,其积分模型的准确度对整个流量计测量准确度有着十分重要的影响,需要进行校准。根据圆管紊流理论,得到了不同条件下的流速分布曲线,分析了管道直径、粗糙度、平均流速等三个因素对多声路流量计积分误差的影响。对于实际应用中的流量计,管道直径不变,而流量与粗糙度可能随时间变化,并导致积分误差的变化,流量计校准时可将其引入不确定度评估中。
出处 《计量技术》 2010年第6期3-6,共4页 Measurement Technique
基金 基金项目:国家“863”计划(2008AA042207)
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参考文献5

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同被引文献23

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