基于EIS的飞机复合材料异常检测技术研究

Research on EIS-based Anomaly Detection Technique for Airplane Composite Materials

先进复合材料在飞机上应用的越来越多,随着其服役时间的增长可能会出现异常,为保证飞行安全,需对飞机的复合材料构件进行必要的异常检测。该文将电阻抗谱法应用于飞机复合材料构件的异常检测。制作了同面双电极传感器和两块碳纤维复合材料试样,并设计了实验电路。采用双电极测量法测量了2个碳纤维被测样本的电阻抗谱,在Matlab中绘出了电阻抗谱图,并进行了对比分析。初步的实验结果表明,通过对复合材料构件电阻抗谱的测量能识别出其异常,将电阻抗谱测量用于飞机复合材料构件的异常检测是可行的。

The application of advanced composite materials in airplane is becoming more and more. Along with the increase of its service time, it may be abnormal. In order to ensure flight safety, it needs to take an anomaly detection of aircraft composite structures. In this work, the electrical impedance spectroscopy is applied to the anomaly detection of composite material components in airplane. A uniplanar dual electrode sensor and two carbon fiber composite samples are fabricated, an experiment circuit is designed. The electrical impedance spectroscopy is measured of two carbon fiber measured samples is measured using the dual-electrode measurement method. The picture of electrical impedance spectroscopy is drawn in Matlab and comparison and analysis is carried out. The preliminary experimental results indicate that the anomalies can be identified by measuring the electrical impedance spectroscopy of the composite materials. It is feasible for the electrical impedance spectroscopy to be applied to the anomaly detection of the composite materials in airplane.