Battery X-Ray Line-Scan Inspection for Faster Defect Detection

The patent replaces traditional mechanical scanning or point-by-point detection methods with a linear array detector that captures the entire cross-section of the battery in a single snapshot. This substitution of mechanical sequential detection with parallel optical/electronic detection enables simultaneous acquisition of data from all sensing regions, achieving both high detection accuracy through multiple sensing regions and high test efficiency through parallel processing without sequential analysis delays

The patent transitions from one-dimensional point or line scanning detection to two-dimensional cross-sectional imaging detection. By arranging multiple sensing regions in a linear array perpendicular to the X-ray beam direction, the system captures spatial distribution information of internal defects across the entire battery cross-section simultaneously, adding a spatial dimension to the detection process and enabling comprehensive defect characterization without increasing analysis time

The patent performs preliminary calibration to establish the optimal correspondence relationship between the carrying platform's moving speed and the scanning rate of the linear array detector. By pre-determining and setting the appropriate speed synchronization parameters before actual testing, the system ensures that the platform speed remains within the optimal range throughout the testing process, preventing undersampling and oversampling while maintaining high test efficiency without requiring real-time speed adjustments

The patent implements a feedback control mechanism where the actual moving speed of the carrying platform is continuously monitored and compared against the optimal speed range. Based on this feedback, the system can make real-time adjustments to maintain the platform speed within the optimal range, ensuring consistent image quality and preventing sampling errors while allowing for efficient testing operations

The patent uses X-ray transmission imaging to create a digital copy or representation of the battery's internal structure. By capturing the attenuation pattern of X-rays as they pass through the battery, the system generates a detailed image copy of internal defects without physically disturbing or consuming the battery. This non-contact imaging approach achieves high resolution and brightness while consuming relatively low energy compared to physical inspection methods or higher power X-ray settings

The patent optimizes the X-ray source power parameters to achieve the minimum necessary power level that still produces sufficient image resolution and brightness for accurate defect detection. By carefully adjusting and controlling the X-ray power parameters rather than using maximum power, the system achieves the required measurement precision while minimizing energy consumption, balancing image quality with energy efficiency