Sensor design is important for electrical capacitance tomography (ECT) that is to be used for a particular application and for generating high-quality images from the measured data. An ECT sensor with long electrodes is commonly used to obtain stable and reliable measurement signals and to ensure the quality of 2D cross-sectional images, but it neglects the effect of electrode length on the entire 3D image. To analyze the effect of electrode length on the measured signals, sensitivity distribution and the quality of reconstructed images, especially the distortion of 3D images, ECT sensors with different electrode lengths of 5, 7, 10, 20 and 30 mm are designed and fabricated. The electrodes are mounted on the internal surface of the ECT sensor wall to eliminate the negative effect of the wall. A dual-electrode excitation strategy is chosen to enhance the signal intensity. The results show that the reconstructed 3D images of the measured objects, which can be divided into three pa...

中文翻译：

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使用具有单层电极的ECT传感器进行3D图像重建

传感器设计对于要用于特定应用的电容层析成像（ECT）以及从测量数据生成高质量图像非常重要。通常使用带有长电极的ECT传感器来获得稳定和可靠的测量信号，并确保2D横截面图像的质量，但是它忽略了电极长度对整个3D图像的影响。为了分析电极长度对测量信号，灵敏度分布和重建图像质量（尤其是3D图像失真）的影响，设计并制造了电极长度分别为5、7、10、20和30 mm的ECT传感器。电极安装在ECT传感器壁的内表面上，以消除壁的负面影响。选择双电极激励策略以增强信号强度。结果表明，重建后的被测物体的3D图像可分为三个部分。