Terrestrial & Metrology Grade Laser Scanning


Cheal own scanning equipment for both Terrestrial and Metrology grade 3D scanning applications.

Laser scanning provides fast, efficient data capture for design and modelling in 3D. Cheal provides this service nationwide or internationally if requested. Terrestrial Laser scanning technology can collect massive amounts of data over complex structures or surfaces. This ‘point cloud’ data may be used to create solid CAD models or simply provided to the client in a raw format that can be handled by much of today’s design software platforms.

Our terrestrial scanner is typically absolute point accurate to + 2mm. To complement our already well established Terrestrial Scanning Services, Cheal now own a highly accurate Metrology handheld Creaform scanner. This scanner is absolute point accurate to 30 microns (0.03mm) and ideally suited to scanning parts that fit inside a 2 cubic metre volume. Cheal own the Creaform VXelements Suite of software which allows our team to provide Reverse Engineered CAD models, high resolution mesh models, quality inspection reports, and much more.

Our Terrestrial Scanning Service is particularly useful for deformation monitoring, modelling pipework or structures for design and refit, as-built records of complex structures and remote monitoring. Cheal has extensive scanning experience throughout the energy and infrastructure sectors. Our team hold Confined Spaces and Gas Monitoring competencies together with Working at Heights competency. This allows our scanning team to access complex difficult to measure confined space environments such as tunnels and hydroelectric power plant penstocks, scroll cases, and draft tube environments.

Laser technology provides Cheal Surveyors with a powerful tool to
  • Provide a safer platform to capture data in hazardous environments
  • Rapid capture of accurate data
  • High coverage of data capture therefore minimizing need for future site revisits
  • Provide fast turnaround of information with minimal site interference
Benefits for clients
  • Much improved operational efficiencies than conventional survey measurement methods leading to cost efficiencies.
  • Reduced ambiguity and return trips to site
  • Allows for more accurate design because of the comprehensive data collected
  • Rapid project turnaround times
  • High level of detail with photographic image overlays
  • Reduced health and safety risks through remote on-site data capture
  • High quality scans of mechanical parts for Reverse Engineering applications.
  • Comprehensive quality Metrology reports comparing scanned parts versus the CAD design model.
Terrestrial Scanning Applications
  • Tunnel surveys, landfill and quarry measurement
  • Heritage building facades and building structural scans for earthquake strengthening analysis
  • Civil earthwork volume measurement
  • Mapping corrosion inside confined space environments such as penstocks or tank vessels
  • Survey of pipes and mechanical plant
  • Scanning spaces for Health and Safety applications
  • Ground subsidence monitoring
  • Complex and high hazard area topographic surveys
  • Slope stability models
Metrology Applications
  • Reverse Engineering – file output for CNC machining
  • Quality checks on parts, mechanical or otherwise
  • Surface corrosion modeling
  • Pipe or small vessel deformation checks


Steve Bowden
M: 027 477 8178 | E: steveb@cheal.co.nz

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