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.
Immersion Squirter Shoe
Meaning
Fluid conduit establishes the fixed standoff distance required for high-speed scanning. By projecting a stream of liquid, an immersion squirter shoe allows ultrasonic waves to enter the material without full submersion. It is frequently used for scanning large battery enclosures where a full immersion tank is impractical.
Fluid Column
Laminar flow is maintained within the stream to prevent air bubbles from scattering the ultrasonic signal. The height and diameter of the water path in the immersion squirter shoe determine the focal characteristics of the beam. Consistent pressure ensures a steady coupling throughout the scan.
Surface Coupling
High-frequency sound travels through the water and enters the material at a precise angle. This method allows for high-sensitivity testing while keeping the rest of the electronic components dry. The immersion squirter shoe follows the contours of the part to maintain a constant distance.
Equipment Integration
Multi-axis robots often carry these devices to inspect complex geometries at high speeds. Because the water is recycled and filtered, the system remains efficient over long production runs. It provides the high signal-to-noise ratio of immersion testing with the flexibility of a handheld probe.
This setup is effective for detecting delamination in composite battery trays or structural adhesive gaps.