In Line Phased Array Inspection of Encapsulated Battery Structural Adhesives
Inline phased array testing maps structural adhesive wet-out and void formation through metal pack enclosures in real time at production line speeds.
Dry Coupled Transducer
Meaning
Ultrasonic sensor transmits sound energy into a test piece without the use of liquid or gel couplants. Utilizing a soft, compliant material at the tip, the dry coupled transducer establishes the necessary physical contact through pressure alone. This technology is essential for inspecting porous or chemically sensitive materials found in battery manufacturing.
Elastomeric Interface
Flexible membranes or rollers adapt to the surface roughness of the component. This contact allows the high-frequency vibrations to pass from the piezoelectric element into the target material. A dry coupled transducer requires specific downward force to eliminate air gaps.
Contamination Prevention
Eliminating liquids ensures that no residues remain on the electrodes or housing after the test. In battery production, even a small drop of water or oil can ruin the chemistry of a cell. The dry coupled transducer provides a clean solution that maintains the purity of the cleanroom environment.
Operational Speed
Moving from one test point to another happens faster when there is no need to apply or wipe away couplant. Automated scanning bridges utilize these sensors to perform rapid sweeps over large battery trays. Because the setup is simpler, the overall cycle time for quality checks is reduced.
This efficiency makes the technology attractive for high-volume automotive assembly lines where every second of throughput counts. The lack of consumable liquids also lowers the long-term cost of the inspection station.