Detection of Busbar Welding Defocus with SinceVision Laser Displacement Sensor

Industry pain points and demands

In lithium battery manufacturing, achieving precision in busbar-to-tab welding is critical for performance and safety. Misalignment or focus errors can result in cold solder joints or burn-through defects, directly affecting product reliability.

SinceVision’s SD33 series laser displacement sensor delivers high-accuracy defocus detection (≤0.03mm), measuring surface height deviations in real time. It provides immediate feedback to welding equipment, enabling automatic focal adjustments and significantly lowering the risk of weld defects.

This ensures high-quality, sub-millimeter level inspection for every weld, improving yield and consistency in high-volume battery production.