ZHANG Ming1, YAO En-tao1, ZHANG Jun2, et al. Method of measuring different depth water content inconstruction walls by capacitive sensors[J]. 2008, 27(10): 18-20.
ZHANG Ming1, YAO En-tao1, ZHANG Jun2, et al. Method of measuring different depth water content inconstruction walls by capacitive sensors[J]. 2008, 27(10): 18-20. DOI: 10.13873/j.1000-97872008.10.023.
基于电容传感器的围护结构含水率层析方法
摘要
针对围护结构含水率测试深度的要求
研究了同面电容传感器探头的结构尺寸优化设计方法
通过仿真和实验研制了不同探测深度灵敏度的测试探头
将围护结构沿深度方向离散化为若干层
利用实验数据拟合得到各层对于不同探头的输出与含水率的函数关系。通过传感器多结构组合测试
从耦合项中分离出各层的含水率。实验结果表明:该传感器组合测试方法可以达到含水率层析的目的
测试精度与使用的传感器数量有关。
Abstract
Aimed at the request of the water content of the construction wall in different depth
the method of optimizing the structure and the size of capacitive sensor is strdied.A series of detectors with different detecting depth are developed by simulation and experiment.The construction wall is divided into some layers along the direction of depth
and the relationship between water content and the output of different sensors is fitted by means of experimental data.Through combination measurement
the water content in each layer can be obtained.Experimental results show that the distribution of the water can be calculated from the equations
and the test accuracy is decided by the amount of sensors.
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