supported by the Natural Science Foundation of China(No.11902280);Aeronautical Science Fund(No.20200033068001);Innovation Fosundation for Young Scholar of Xiamen(No.3502Z20206042);the Fundamental Research Funds for the Central Universities(No.20720210049)。
Crack monitoring at the bolt hole edge is one of the important focuses of aircraft structural health monitoring.In this study,a novel eddy current sensing film based on a parallelogram coil array is developed to quant...