The utility model provides a parallel capacitance array sensor for water infiltration of porous dielectric insulating plates, which belongs to the technical field of capacitance tomography. The sensor comprises an excitation detection electrode plate and a plurality of electrode interfaces. The inside of the excitation detection electrode plate is in turn a porous dielectric insulating plate under test and a metal shell of the cabin as a common electrode. An array electrode is arranged inside the excitation detection electrode plate, and each electrode is connected with the corresponding excitation detection electrode interface and forms an electrode pair with the common electrode respectively; a shielding layer is covered on the outer side of the excitation detection electrode plate; and a vertical area formed between the array electrode and the common electrode is the detection sensitive area, and the porous insulation is measured. The dimension of the plate completely covers the projection area of the sensitive area along the plane direction of the porous insulating plate under test. The utility model has the advantages of convenient operation, high detection efficiency, deep detection depth, large amount of information obtained and strong expansibility.
【技术实现步骤摘要】
用于多孔介质绝缘板材渗水检测的平行电容阵列传感器
本技术属于电容层析成像
，特别涉及一种用于多孔介质绝缘板材渗水检测的平行电容阵列传感器。
技术介绍
随着科学技术的发展，复合材料在船舶与海洋工程领域得到了广泛应用。船舶结构长期浸泡在恶劣的海洋环境中，由于海水具有强烈的腐蚀性，包裹在船舶舱体外壳(通常由铁皮制成)外围的复合材料如多孔介质绝缘板材(该板材多用于具有吸声要求的船舶)很容易被腐蚀造成该复合材料与舱体外壳接触处乃至舱体内部渗水，从而影响船舶结构整体的承载能力。统计数据表明，由于海水腐蚀已导致90％的船舶退役。船舶表层的复合材料属于多孔结构，从船舶金属壳体与船舶表层复合材料间的粘接缝渗入的水会沿着船舶表层复合材料的孔隙渗入到复合材料中，直接影响船舶表层复合材料的性能和寿命。因此为了确保船舶安全服役，有必要对船舶表层的复合材料进行渗水检测并进行异常定位。由于船舱舱体的外壳呈现出封闭特性，目前所存针对舱体外壳检测的电容传感器大多为单平面电容传感器，由于单平面电容传感器是依靠电容边缘效应的原理，检测深度有限，大多应用在飞机舱体外壳等的检测。目前所用平面电容传感...
【技术保护点】
1.一种用于多孔介质绝缘板材渗水的平行电容阵列传感器，其特征在于，包括激励检测电极板和多个电极接口，所述激励检测电极板的内侧依次是被测多孔介质绝缘板材和舱体金属外壳，利用金属的导电性将被测区域的舱体金属外壳作为公共电极；所述激励检测电极板的内侧设有与被测多孔介质绝缘板材相接触的阵列电极，该阵列电极由N个平行设置的矩形电极构成，每个矩形电极与位于激励检测电极板上相对应的一个激励检测电极接口连接；所述激励检测电极板的外侧覆盖有用于避免外界噪声信号干扰和内部电场泄露的屏蔽层；所述激励检测电极板上还设有共地电极接口；所述被测舱体金属外壳上设有共地电极接口和公共电极接口；所述激励检测...
【技术特征摘要】
1.一种用于多孔介质绝缘板材渗水的平行电容阵列传感器，其特征在于，包括激励检测电极板和多个电极接口，所述激励检测电极板的内侧依次是被测多孔介质绝缘板材和舱体金属外壳，利用金属的导电性将被测区域的舱体金属外壳作为公共电极；所述激励检测电极板的内侧设有与被测多孔介质绝缘板材相接触的阵列电极，该阵列电极由N个平行设置的矩形电极构成，每个矩形电极与位于激励检测电极板上相对应的一个激励...
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