Based on the closed-loop track and modular bracket design, the circulating orbital pipeline DR transmission imaging flat scanning device automatically feeds the workpiece into the scanning chamber from the starting point, and then moves along the track at a uniform speed to realize the simultaneous acquisition of X-ray and visible light. Different from the traditional plane bearing detection, the system cancels the occlusion of the fixed support plate and avoids the overlapping artifact of the carrier surface, thus significantly improving the photon utilization rate, and at the same time, through the real-time fusion algorithm and motion compensation technology, the signal-to-noise ratio of the image is effectively enhanced, so that the detailed defects such as small cracks and bubbles can be more clearly detected in lightweight materials (such as carbon fiber composite materials, honeycomb sandwich panels, etc.).

In terms of hardware, the device uses a focusable X-ray tube and a high-resolution CMOS visible light camera, with dynamic optical filtering and automatic gain control, to achieve high-quality imaging with a wide energy spectrum and low dose. At the software level, a multi-scale image alignment and integrated feature extraction module is introduced to accurately align and fuse data of different modalities within milliseconds, and the detection cycle of the entire pipeline is controlled within seconds through GPU parallel acceleration. The system has been successfully deployed on the production lines of many composite material manufacturing enterprises, with a daily inspection capacity of thousands of pieces, stable operation and easy maintenance.

Looking forward to the future, the technology platform is not only suitable for carbon fiber, glass fiber and other composite materials, but also can be extended to the online batch inspection of polymers, light metal alloys, ceramic matrix composites and other workpieces with scalable scanning tracks and flexible software interfaces, providing a reliable and intelligent solution for quality control in aerospace, rail transit, wind power blades and other fields.

The design has applied for invention and utility model patents, and has won the honorary certificate of 2024 scientific and technological achievements with transformation potential from Xiamen University.

The laboratory has used this equipment to take a variety of sample data, and has also published several papers, relevant data and literature can be browsed and downloaded in the download area or contact the person in charge of the laboratory.