Light optical sensor VisionLine OCT Check

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Overview
Optical coherence tomography (OCT) sensor for in-process welding depth monitoring synchronized with production. VisionLine OCT Check measures keyhole/capillary depth and the geometry of the solidified weld seam, enabling 100% inspection along the weld when used with PFO optics without parameter adjustments.

Key benefits

• In-line depth monitoring synchronized with the welding process for immediate detection of deviations.
• Eliminates routine cross-section polishing during production and reduces destructive sampling.
• Minimal interfaces for straightforward plant integration and lower scrap rates.
• Consistent traceability: measurement data linked to component ID and storable via QDS 2.0.
• Fast setup: camera-based alignment aid for high-precision and quick adjustments.
• Includes VisionLine Detect and VisionLine OCT Detect functions (position recognition and 3D feature detection).

User interface
The VisionLine programming wizard guides through configuration; production-relevant data are presented clearly and online help plus support functions simplify sensor parameterization and day-to-day operation.

Data and quality memory
Real-time monitoring and recording of weld depth and seam geometry. Quality data can be stored and retrieved using the QDS 2.0 quality data memory to support process decisions and traceability.

Integration
Seamless integration into TRUMPF solutions: OCT functions operate across the PFO working range, the OCT is integrated into the laser safety circuit and controlled via TruControl. Available optics include PFO 33 (requires 3rd generation PFO). Compatible lasers: TruDisk and TruFiber.

Technical data (table)
Available lasers: TruDisk (1030 nm, 515 nm), TruFiber (1075 nm, Multi Mode)
Available optics: PFO 33 (3rd generation)
OCT wavelength spectrum: 820–860 nm (Class 3B)
OCT sensor measurement rate: 250 kHz
Axial measurement range: ±5 mm (depending on focal length)
Lateral measurement range: Ø 15–25 mm (depending on focal length)
Axial resolution: 12 μm
Lateral resolution: ≥2 μm (depending on parameters and optical setup)
Typical welding depth measurement range: 0.5–5 mm (depending on process design and optical setup)

Technical specifications

• Product: VisionLine OCT Check (sensor system for welding depth monitoring)
• Compatible lasers: TruDisk 1030 nm, 515 nm; TruFiber 1075 nm (Multi Mode)
• Compatible optics: PFO 33 (requires 3rd generation PFO)
• OCT wavelength: 820–860 nm (Class 3B)
• OCT measurement rate: 250 kHz
• Axial measurement range: ±5 mm
• Lateral measurement range: Ø 15–25 mm
• Axial resolution: 12 μm
• Lateral resolution: ≥2 μm
• Typical welding depth measurement range: 0.5–5 mm