Water-Immersion C-Scan
High-Precision Immersion Ultrasonic Imaging for Small to Medium Components
CCNDT water-immersion C-scan systems submerge the test piece in a temperature-controlled water tank, using water as a stable, uniform coupling medium between the ultrasonic transducer and the specimen. This method delivers the highest signal consistency and near-surface resolution among all ultrasonic coupling techniques, making it ideal for precision inspection of small to medium-sized components.
Immersion Coupling Advantage
Full immersion eliminates air gaps entirely, providing exceptionally stable acoustic coupling that is unaffected by surface roughness variations or probe alignment drift. The water path between transducer and part can be precisely adjusted to optimize focal zone placement within the specimen. This results in superior signal-to-noise ratio, minimal near-surface dead zone, and highly repeatable measurements across thousands of scan points.
- Eliminates air gaps for maximum coupling stability
- Adjustable water path for optimal focal zone placement
- Superior signal-to-noise ratio and minimal dead zone
- Highly repeatable across high-volume batch inspection
System Configuration
CCNDT immersion systems feature precision multi-axis scanning bridges mounted over stainless steel water tanks. Tanks are sized to accommodate target part dimensions and may include temperature regulation, filtration, and automated loading/unloading mechanisms. High-frequency focused transducers combined with micron-level motion positioning resolve fine internal features such as micro-channel bridging defects in brazed cooling plates.
- Precision multi-axis scanning bridge over stainless steel tank
- Temperature-regulated and filtered water circulation
- High-frequency focused transducers for micron-level resolution
- Automated loading/unloading for production-line integration
- Custom tank sizes matched to part dimensions
Typical Applications
Water-immersion C-scan is the preferred method for inspecting liquid cooling plates, IGBT power modules, ceramic substrates, small composite coupons, and precision-machined aerospace components. Its unmatched coupling stability makes it the reference standard for laboratory qualification and high-volume production screening where measurement repeatability is paramount.
- Liquid cooling plate brazing quality inspection
- IGBT/DCB solder layer void and delamination detection
- Ceramic and electronic package inspection
- Small composite coupon and laminate characterization
- Precision aerospace component qualification
Talk to Our NDT Engineers
Tell us about your inspection target and we will recommend the right ultrasonic solution.