Electroluminescence inspection

The system is used for inspection of solar modules before and after the lamination process. The new inspection system is now offering a better resolution of 100µm/pixel (240 MByte per module) instead 170µm/pixel (72 MByte per module). With this better resolution and a better image quality even smallest, quality-related defects are detected fully automated. The product family SolarModule EL-inline also has a unique conveyor system as MBJ Solutions explains. This allows very safe inspection of even non-laminated modules and a fully automated product change over. Moreover the system has a very user-friendly graphical user interface and a robust and reliable image processing software. The electroluminescence technology allows the visualization and detection of defects otherwise not visible by the human eye as the company states. These defects are for example, micro cracks, electrically not active areas and grid failures. Micro cracks, when undetected, can progress over time and lead to a significant loss in module power.