Non-Linear Scan
A scanning pattern in ultrasonic testing that follows material geometry rather than straight parallel paths. Used on cylindrical pipe welds, circumferential scans follow the pipe circumference. Non-linear scans may follow weld contours for complex components. The key is maintaining consistent technique and beam angles throughout the scan. Data from non-linear scans must be properly referenced and interpreted.
A scanning pattern in ultrasonic testing that follows material geometry rather than straight parallel paths. Used on cylindrical pipe welds, circumferential scans follow the pipe circumference. Non-linear scans may follow weld contours for complex components. The key is maintaining consistent technique and beam angles throughout the scan. Data from non-linear scans must be properly referenced and interpreted.
Why It Matters
Non-Linear Scan is a critical NDT technique used across multiple industries. Understanding its principles, applications, and limitations is essential for proper inspection planning and execution.
Industry Applications
This method is widely used in oil and gas, aerospace, power generation, manufacturing, and construction industries for detecting discontinuities, assessing material properties, and ensuring component safety.
Best Practices
- Always follow applicable NDT standards and procedures
- Use properly calibrated and maintained equipment
- Ensure personnel are properly trained and certified
- Document inspection procedures and results completely
- Keep current with industry standards and best practices
Type
Methods
NDT inspection technique or method
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