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文章介绍了双通道雷达一体机研制的意义,并对一体机的组成结构进行了详细的介绍。相比于单通道雷达,使用更加方便,数据采集赫尔报告生成更加自动化。在此基础上,结合南水北调中线工程渠道的结构特点,制作了渠道模型,通过1-90 d的测试,得到随着混凝土龄期的不断增长,电磁波在混凝土中的传播速度呈不断增加的趋势,而混凝土的介电常数呈不断减小的趋势。证明双通道雷达一体机的检测结果能够很好的反映早期混凝土内部水分含量和水分分布的变化情况。
This article introduces the significance of the development of dual-channel radar integrated machine, and introduces the composition of the integrated machine in detail. More convenient to use than single-channel radar, data acquisition Hull report generation is more automated. On this basis, combined with the structural characteristics of the mid-route of South-to-North Water Diversion Project, a channel model was made. Through 1-90 d test, the propagation speed of electromagnetic wave in concrete tended to increase with the continuous increase of concrete age, The dielectric constant of concrete shows a decreasing trend. It proves that the detection results of the dual-channel radar integrated unit can well reflect the changes of the internal moisture content and moisture distribution in the early concrete.