Multi-Sensor Log Scanning for Geometry and Internal Quality
TUNA LogScan is a linear multi-sensor scanner built for industrial sawmills. Combining 3D laser triangulation, high-resolution colour imaging, and optional X-ray sensing, it measures diameter, length, volume, taper, and sweep — overbark and underbark — with ±1 mm repeatability. The X-ray module shows what is inside the log before sawing: AI models trained on production reference data detect internal defects and grade each log by internal quality — so sorting and cutting decisions are driven by value, not volume alone.
How TUNA LogScan Works
Logs pass through a linear scanner array in the logyard. Multiple sensor types capture data simultaneously in a single pass.
Log Entry Detection
Infrared presence sensors detect the approaching log and trigger the scanning sequence with precise timing synchronization.
Laser Profiling
2048+ point 3D laser triangulation arrays capture precise surface geometry profiles at full production speed.
Color Image Capture
High-resolution colour cameras record surface details for defect analysis, bark assessment, and species identification.
X-ray Densitometry
The optional X-ray module reveals internal density variations and hidden defects — without contact, before sawing.
Cutting Optimization Starts at the Log Sorting Line
Every log TUNA LogScan measures becomes a digital model — exact geometry, surface quality, and internal defects captured in a single pass. This model feeds Optisoft in real time, which evaluates possible cutting patterns and directs each log to the sorting bin that matches its optimal end product. When the log reaches the sawline, WoodScan identifies it and retrieves the precomputed cutting solution and rotation angle — so the first cut is already the best cut.
The result: sorting decisions made for value, not just dimension, and measurably higher recovery from every log.
WoodScan Trace
Every board knows its log. Every log scanned by TUNA receives a digital identity that follows it through the entire mill. Geometry, quality grade, and the assigned cutting plan travel with the log — from reception to sawline — so no measurement is ever repeated or lost.
After sawing, WoodScan Trace matches each board back to its source log and position within it, turning production data into verifiable traceability for yield analysis, quality claims, and chain-of-custody reporting.
Key Benefits
Engineered for accuracy, reliability, and seamless sawmill integration.
True 360° Real-Shape Measurement
Multi-view geometry delivers stable, repeatable accuracy across log diameters, speeds, and surface conditions.
Modular Multi-Sensor Architecture
Combine laser profiling, colour imaging, and X-ray; start with geometry and add X-ray when ready.
Surface Defect Detection
High-resolution colour imaging detects and classifies surface defects and discoloration for quality grading.
Real-Time Motion Compensation
Log movement and rotation are compensated on the fly, keeping measurements stable in dynamic conditions.
Automatic Self-Calibration
Continuous calibration offsets temperature drift, vibration, and sensor aging — no manual calibration.
Real-Time Grading
AI assigns species and quality grade with deterministic, latency-controlled output for sorting and optimization.
High-Speed Processing
FPGA-accelerated pipeline delivers results in under 50 ms at full line speed.
24/7 Industrial Design
IP65-rated hardware built for dust, moisture, vibration, and temperature extremes.
System Overview
A complete view of TUNA LogScan technology, capabilities, and applications.
Technology
Technical
Application
Measurement
Applications
TUNA LogScan is designed for the logyard — the first point of measurement in the sawmill process.
Log Reception & Scaling
Every incoming log is measured and recorded automatically, replacing manual scaling and giving accurate volume data from the first touchpoint.
Value-Based Sorting
Each log is directed to the sorting bin that matches its optimal end product, based on geometry and internal quality.
Inventory Allocation
Real-time log inventory feeds production planning for optimal log-to-product allocation.
TUNA LogScan Models
Choose the configuration that matches your sawmill needs.
| Feature | Tuna-SM1200 | Tuna-SM1200X |
|---|---|---|
3D Laser Triangulation | ||
Colour Imaging | ||
X-Ray Densitometry |
Integration & Connectivity
TUNA LogScan connects seamlessly with your existing mill infrastructure.
Ethernet / OPC-UA / REST API
Connects to Optisoft, WoodERP, sorting PLCs, and third-party ERP systems.
See TUNA LogScan in Action
Schedule a live demonstration or request detailed technical specifications for your logyard setup.