Optimal Location of an Acoustic Sensor for an Accurate Pipe Length Measurement Using Stationary Wave
Optimal Location of an Acoustic Sensor for an Accurate Pipe Length Measurement Using Stationary Wave
复制标题
使用驻波精确测量管道长度的声学传感器的最佳位置
DOI：
10.9746/sicetr1965.39.1010
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Shogo Tanaka
中科院分区：
文献类型：
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作者：
M. Okamoto;Farrukh Rizkiyev;Shogo Tanaka
在测量领域，我们经常会遇到需要间接测量管道长度的情况。从方便应用和成本的角度出发，我们研制了一种单声传感器管道在线测长系统。该系统利用了冲击管道产生的驻波或管道中自发产生的驻波。该系统将驻波建模为线性动态系统的状态变量，应用卡尔曼滤波和极大似然法，实现了高精度的测量。本文讨论了声传感器的最佳位置，以实现更高精度的管道长度测量。实验结果表明了该方法的有效性。
In the field of measurement, we often encounter the need to measure pipe lengths indirectly. We have developedd an on-line pipe length measurement system with one acoustic sensor from the viewpoints of ease to be used in various applications and its cost. The system made use of the stationary wave generated by hitting the pipes or the one spontaneously generated in the pipes. The system realized a highly accurate measurement by modeling the stationary wave as state variables of a linear dynamic system and applying Kalman filters and maximum likelihood method. The paper discusses the optimal location of the acoustic sensor to realize a much higher accurate pipe length measurement. Experiments will show the validity of the optimal sensor location.