Conformal coatings used by electronics manufacturers contain UV indicators for inspection purposes. Since coatings are transparent, units need to be viewed under blacklight to check coverage and non-coverage.
The FX-940UV by Nordson Asymtek simplifies and streamlines the inspection of conformal coatings by automating the inspection process for quality and consistency of coatings.
The advanced high-performance UV lighting and newly available image processing technology integrate various techniques, including coverage inspection, color inspection, normalized correlation, and rule-based algorithms, to provide complete inspection coverage with an unmatched low false failure rate.
With minimal programming, inspection setup is fast and intuitive, typically taking less than 30 minutes. A known good board is used to train the coverage and non-coverage areas. Automated inspection typically takes only a few seconds, with inspection results displayed immediately. These results can be stored offline and reviewed. The FX-940UV also reads all common barcodes and captures board images to ensure product traceability.
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