Analysis of eddy-current flowmeters
Analysis of eddy-current flowmeters
复制标题
涡流流量计分析
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
C. Dodd
中科院分区：
文献类型：
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作者：
C. Feng;W. Deeds;C. Dodd
线圈可以感应和检测附近导体中的涡流。如果导体在运动，涡流就会轻微地随之携带，而适当设计的线圈可以相当准确地测量运动导体的速度。用计算机松弛程序计算了各种轴对称排列的线圈和导体。用汞作为流动导体，用三圈和五圈流量计进行了实验，实测值与计算值吻合较好。对于任何给定的布置，都存在一个最佳运行频率，并且不同的频率可以提供关于速度分布的信息。
Coils can induce and detect eddy current in nearby conductors. If the conductor is moving, the eddy currents are carried along with it slightly, and properly designed coils can measure the velocity of the moving conductor with considerable accuracy. Calculations have been made for various axially symmetric arrangements of coils and conductors using a relaxation program for a computer. Experiments have also been made, using mercury as the flowing conductor, with three‐ and five‐coil flowmeters, with good agreement between measured and computed values. For any given arrangement there is an optimum frequency of operation, and different frequencies can give information about the velocity distribution.