Experimenting capacitive sensing technique for structural integrity assessment

This paper presents the experimental results of capacitive imaging sensors for structural integrity assessment. The capacitive sensor is based on the measurement of capacitance change due to the anomaly or discontinuity in structures and materials. A number sensor prototypes are investigated in the study. The observation of the scanned image of a Aluminum plate, a carbon fiber plate, and ductile iron pipe segments, is summarized in this paper. Future research will consider applying signal/image processing techniques to quantitatively characterize the anomaly or discontinuity for a more comprehensive assessment of structural integrity in varied applications.