High-tech quality inspection in pulp & paper manufacturing, Christian Eikmeyer, Product Manager, ISRA VISION

PAPERTECHNOLOGYINTERNATIONAL
Time Delay Integration (TDI)
At high production speeds, traditional imaging methods
often necessitate intense lighting to clearly capture fast-moving
defects, leading to increased energy and cooling demands.
Reducing illumination typically results in darker images with lower
contrast between the material and defects such as dirt spots. TDI
technology addresses this by capturing the production line multiple
times and overlaying these sequential exposures. This cumulative
imaging approach boosts image brightness and contrast, effectively
counteracting reduced illumination power. Consequently, TDI
technology provides superior image quality, enhanced sensitivity,
and substantial operational cost savings through significantly lower
illumination and cooling requirements.
Advanced Sensor and Camera Technology for color inspection
High-speed paper production demands rapid and precise
defect detection capabilities. Advanced sensor technologies,
including tri-linear color sensors combined with a high-resolution
monochrome channel, capture defects at extremely high resolutions
(up to 16 x 8,000 pixels at scan rates up to 400 kHz). Tri-linear
sensors offer distinct advantages such as maintaining full resolution,
producing true color images, and ensuring superior overall image
quality. This advanced imaging captures minute defects with
remarkable clarity and detail, even at maximum production speeds,
enabling precise classification and ensuring optimal product quality.
Additionally, incorporating both color and monochrome channels
significantly improves the accuracy of defect identification by
simultaneously analyzing intensity and color variations.
Introducing NovaCore: A Comprehensive Quality Inspection
Solution
ISRA VISION’s NovaCore web inspection system
integrates these cutting-edge imaging technologies—HDR imaging,
COMBI Mode, TDI, and advanced sensor arrays—to address
the industry’s critical challenges comprehensively. By combining
multiple inspection methodologies into a unified system, NovaCore
significantly improves defect detection accuracy, reduces false
positives, and enhances operational reliability.
The integrated use of HDR imaging within NovaCore
ensures robust detection of varied defect types regardless of lighting
conditions, thereby improving reel grading accuracy and reducing
customer complaints.
NovaCore’s COMBI Mode simplifies system architecture,
reducing space and maintenance requirements, further lowering
installation and operational costs. TDI technology within NovaCore
dramatically reduces energy consumption by minimizing lighting
requirements, aligning perfectly with sustainability and cost reduction
goals.
NovaCore’s sophisticated sensor and camera technology
ensures accurate defect detection and classification at high
production speeds, providing detailed real-time analytics to
facilitate rapid corrective actions, improving production stability
and consistency. Moreover, advanced AI-driven classification
modules enhance operational ease, significantly reducing training
requirements and the potential for human error.
Customer Benefits: Efficiency, Reliability, and Sustainability
NovaCore directly translates technological innovation into
tangible benefits:
•
Improved Quality Assurance: Accurate detection and
classification of defects ensure consistent product
quality, reducing customer claims and waste.
•
Cost and Energy Efficiency: Lower illumination
requirements, simplified hardware, and reduced
complexity significantly lower operational and
maintenance costs.
•
Reliability and Robustness: Compact, durable system
designs suitable for harsh industrial environments
ensure consistent performance and reduced downtime.
•
Ease of Operation: AI-driven defect classification
simplifies user training and enhances operational
efficiency, supporting scalability and optimal workflows.
Conclusion: A Forward-Looking Solution
ISRA VISION’s NovaCore effectively combines advanced
vision technologies and intelligent analytics into a single solution
tailored to the unique demands of the pulp and paper industry. It not
only addresses existing challenges but also prepares manufacturers
for future quality and sustainability requirements, offering a
comprehensive, efficient, and reliable approach to high-speed
quality inspection.
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