| 蒸汽密度计算的改进 |
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| 引用本文： | 朱佳华 赖晓平. 蒸汽密度计算的改进[J]. 自动化仪表, 1998, 19(8): 16-18 |
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| 作者姓名： | 朱佳华 赖晓平 |
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| 作者单位： | 山东大学威海分校控制工程系 山东威海264209 |
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| 摘 要： | 在智能流量计中过热蒸汽密度计算公式基础上,采用加权最小二乘算法,重新计算了密度公式中的多项式系数,使新系数下的密度公式既适用于过热蒸汽也适用于饱和蒸汽密度的温度补偿.
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| 关 键 词： | 密度计算 过热蒸汽 饱和蒸汽 加权最小二乘法 补偿精度 |
The Improvement of the Calculation for Steam Density |
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| Zhu Guihua Lai Xiaoping. The Improvement of the Calculation for Steam Density[J]. Process Automation Instrumentation, 1998, 19(8): 16-18 |
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| Authors: | Zhu Guihua Lai Xiaoping |
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| Affiliation: | Zhu Guihua Lai Xiaoping |
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| Abstract: | On the basis of the calculation formula for density of superheat steam in intelligent flowmeters and by combining the weighted least square algorithm the polynomial coefficient in density fonnula is re - calculated. The density formula under new coefficient is suitable for the temperature compensation of the density of superheat steam and saturated steam. |
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| Keywords: | Calculation at density Superheat steam Saturated steam Weighted feast square method Accuracy of compensation |
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