3D Laser Scanning for Surveyors
Contact OPTRON to find out more about our 3D Void Scanner solutions!
Modern mining operations demand faster, safer and more accurate ways to understand conditions below the surface. The most significant risks underground are often invisible, such as hidden voids and unstable or shifting ground, which is why many operations incorporate 3D void scanner systems into their surveying workflows. Mining teams are now using advanced cavity-scanning and underground-surveying technologies to gain clearer insights and prevent incidents. This is where specialised hardware, such as the Carlson 3D Void Scanner, is most effective: it captures detailed cavity geometry and structural conditions with high accuracy while enhancing mining safety by keeping teams clear of high-risk zones. With its ability to map hidden spaces safely and accurately, the next step is to look at how a 3D void scanner works beneath the surface.
Understanding How a 3D Void Scanner Works
A 3D void scanner uses advanced laser measurement technology to create accurate 3D models of underground voids, cavities and stopes, especially in areas too dangerous or inaccessible for surveyors.
During a scan, the device emits laser pulses into an opening and captures measured points as the beam reflects off surrounding surfaces. Each reflected return becomes a 3D coordinate point. Together, these points form a point cloud processed into a detailed 3D model that reveals the void’s exact size, shape and stability.
These activities are essential across private developments, public-sector infrastructure and commercial projects, where both the land surveyor and the site surveyor ensure reliable spatial information for safe, accurate decision-making.
The Core Applications of a 3D Void Scanner
This specialised underground scanning technology has become essential for tasks such as:
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Identifying unexpected cavities
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Monitoring stope integrity
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Verifying blast results
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Detecting structural weaknesses
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Reducing the need for physical entry into hazardous zones
Because the scanner does not require human access to the void, it dramatically reduces exposure to the most dangerous areas of a mine. It supports safer, more controlled underground surveying operations.
Introducing the Carlson 3D Void Scanner from OPTRON
OPTRON supplies the Carlson 3D Void Scanner, a compact, rugged, tripod-mounted instrument engineered for demanding underground environments. It delivers the speed, accuracy and stability needed to strengthen mine safety and decision-making.
Designed specifically for mining workflows, the scanner delivers a range of performance features that make it highly effective in demanding underground environments.
The Key Advantages of the Carlson 3D Void Scanner
These advantages are particularly valuable for underground mining applications:
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360° spherical capture: Delivers complete, all-around coverage of voids, stopes and inaccessible spaces in a single scan.
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High-resolution point-cloud data: Produces dense, engineering-grade models suitable for geotechnical analysis, reconciliation and reporting.
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Rapid scan times: Allows frequent monitoring with minimal disruption to production cycles.
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Remote, safe deployment: Captures detailed geometry from a distance, reducing exposure to unsupported or hazardous ground.
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Flexible software integration: Works seamlessly with Carlson processing tools as well as third-party mining and modelling platforms.
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Designed for harsh conditions: Maintains accuracy in dusty, humid or low-visibility environments where traditional instruments struggle.
Collectively, these functions enable consistent, engineering-grade results underground.
The Technical Specifications of The Carlson 3D Void Scanner
The following technical specifications highlight the 3D Void Scanner’s performance in real mining conditions. These specifications give mining teams a clear view of the scanner’s range, accuracy and suitability for harsh underground environments:
| Performance Metric | Specification | Technical Notes |
|---|---|---|
| Maximum Scan Range | Up to 200 m | Range varies with reflectivity and void geometry |
| Field of View Coverage | 360° spherical | Complete mapping of stopes, voids and inaccessible cavities |
| Measurement Accuracy | ±30 mm | Dependent on distance and environmental conditions |
| Point Collection Speed | 200 pts/sec | Supports fast underground scanning and high scan frequency |
| Point Cloud Resolution | High-density output | Suitable for geotechnical reconciliation and engineering models |
| Laser Classification | Class 1 | Eye safe for underground personnel |
| Environmental Durability | Dust and humidity tolerant | Built for harsh underground and low visibility environments |
| Power Configuration | Battery or external supply | Flexible for field deployment and continuous use |
| Instrument Weight | Approximately 6.8 kg | Portable, tripod mountable design |
| Software Integration | Carlson and third party platforms | Streamlined processing and modelling workflows |
Mines looking to reduce manual entry, strengthen data confidence and align with modern safety standards can rely on the Carlson 3D Void Scanner as a durable, future-ready solution that delivers consistent, high-quality results.
Those requiring deeper technical insight can review the complete system specifications in OPTRON’s technical brochure.
Improving Mining Safety With a 3D Void Scanner
Modern 3D scanning tools enhance mine safety by enabling faster, more accurate underground surveying and reliable cavity scanning without exposing teams to unstable ground.
1. Enhance Mining Safety With Remote Scanning
Traditional inspections often required surveyors to enter unstable stopes with limited visibility, making the work a high-risk underground operation. A 3D void scanner allows surveyors to assess stope conditions remotely, avoiding exposure to unsupported ground.
2. Reduce Delays With Rapid 3D Data Capture
Manual cavity checks can take hours and yield only partial information. A modern 3D void scanner captures a detailed model in minutes, giving crews the data they need to make post-blast decisions quickly and avoid production delays.
3. Strengthen Decision-Making With High-Accuracy Scans
High-density scanning helps mines detect overbreak, deformation or structural risk earlier and supports better decisions on reinforcement, blasting adjustments and long-term planning. Modern scanners capture precise measurement points, providing a far more reliable picture of cavity geometry than selective manual measurements.
Applying 3D Void Scanners in Underground Mines
A 3D void scanner supports several critical underground surveying tasks across the mining cycle. Their ability to deliver precise underground surveying and remote cavity scanning makes them essential across several critical mining tasks.
1. Enhance Structural Risk Assessment
Understanding conditions inside unsupported ground is central to mine safety. A 3D void scanner captures detailed cavity geometry from a safe distance, helping teams detect hidden voids, overbreak and early signs of deformation.
2. Detect Hidden Cavities and Structural Weaknesses
Unexpected voids can compromise ground stability. A 3D void scanner reveals their shape and extent even when there is no safe access. High-risk areas typically require more frequent scanning – today’s rapid capture speeds make repeat surveys practical without interrupting production.
3. Verify Blast Outcomes With Remote Cavity Scanning
Post-blast scans confirm whether the blast delivered the intended shape and volume. If overbreak or unexpected cavities appear, the data guides drilling and blasting adjustments. This also answers a key safety concern: verifying stope stability without entering the area.
4. Monitor Excavation Stability Over Time
Regular scans help detect subtle deformations before they become a safety concern. Incorporating this into routine underground surveying allows teams to compare scan data and identify small shifts in cavity geometry.
5. Map Legacy Workings for Safer Mine Planning
Old or uncharted workings can affect ground stability and increase the risk of breakthrough events. A 3D void scanner safely maps these voids, providing a clearer understanding of their impact on current operations and long-term planning.
Choose the Carlson 3D Void Scanner With OPTRON
A 3D void scanner has become a key asset for underground mines seeking safer workflows, reliable data and faster operational decision-making. By reducing the need to enter unstable cavities and delivering high-resolution 3D data, mines can better manage risk and optimise production cycles.
OPTRON’s Carlson 3D Void Scanner delivers the engineering-grade performance required in demanding underground environments, supported by OPTRON’s technical expertise and regional mining experience.
If you want to strengthen mine safety and elevate your underground surveying capabilities, request a demo of the Carlson 3D Void Scanner from OPTRON. Their specialists will help you assess your needs and show how this technology fits into your operation.