Design of Array Eddy Current Scanning System for Aluminum Liner of Hydrogen Cylinder

The high-pressure hydrogen storage tank used in vehicles is in a high-pressure state for a long time, so the inner surface of its aluminum liner is prone to corrosion, cracks, and other defects, leading to the failure of the hydrogen cylinder. Due to the small volume and narrow mouth of hydrogen storage bottles used in vehicles, it poses significant engineering difficulties for traditional detection methods. Therefore, there is an urgent need for a fast-scanning system suitable for the hydrogen cylinders. In this paper, an array eddy current scanning system for detecting surface defects on the aluminum inner liner of hydrogen cylinders is designed. The comprehensive scanning of the aluminum inner liner is completed with the scanning system.