3D Laser Scanner

3D Laser Scanners for Surveying and Site Measurement

A 3D laser scanner records the position of surfaces around the instrument by measuring distances to surrounding points. As data is collected, these measurements are combined to create a three-dimensional representation of the surveyed environment.

The resulting point cloud can be used as a digital record of existing site conditions and can support further processing, measurement and modelling.

Typical applications include:

• Building and site surveys
• Construction documentation
• Interior and exterior mapping
• Existing-condition surveys
• Industrial and plant environments
• Infrastructure documentation
• As-built data capture
• Measurement of complex spaces

For survey work that requires individual points, angles and setting-out functions rather than continuous 3D capture, Total Stations provide a different type of surveying instrument.

SLAM Laser Scanners

Our STONEX 3D laser scanners use SLAM (Simultaneous Localisation and Mapping) technology to capture spatial data while the operator moves through the survey area.

Instead of relying on a series of fixed scanner positions, SLAM allows the system to track its position continuously as data is collected. This makes it well suited to buildings, corridors, industrial facilities and other environments where mobile scanning can make site capture faster and more practical.

The STONEX range includes several 3D SLAM scanner options, so the most suitable model should be chosen according to the intended survey area and data-capture requirements rather than by scanner size alone.

Point Clouds and 3D Survey Data

The measurements captured by a 3D laser scanner are combined into a point cloud representing the visible geometry of the scanned environment.

Point-cloud data can then be processed within compatible software for measurement, documentation and modelling workflows. Depending on the project and software being used, the captured information may support the preparation of plans, models or other survey deliverables.

The scanner records the surfaces that can be captured during the survey route, so planning how the operator moves through the site remains important. Large objects, walls and other obstructions can limit visibility of areas behind them and may require additional passes or viewpoints.

3D Laser Scanning for Buildings and Construction

3D laser scanning is particularly useful where a large amount of existing site information needs to be recorded.

For building surveys, a mobile scanner can capture rooms, corridors and connected spaces while the operator moves through the property. On construction sites, scanning can provide a digital record of conditions at a particular stage of the project.

Industrial and plant environments can also benefit from 3D scanning where pipework, equipment and structural elements create complex spaces that would be time-consuming to document using individual measurements alone.

The appropriate scanning workflow depends on the site, required output and level of detail needed after processing.

Choosing a 3D Laser Scanner

When comparing 3D laser scanners, consider:

• Type and size of the area being scanned
• Indoor or outdoor use
• Required scanning range
• Data-capture workflow
• Portability
• Project scale
• Processing and software requirements
• Required project output

For mobile scanning, the physical size and handling of the equipment can also matter where the operator needs to move through rooms, stairways, corridors or restricted areas.

The scanner should ultimately be selected around the type of project and how the captured point-cloud data will be used afterwards.

3D Laser Scanners from Celtic Surveys

Celtic Surveys supplies STONEX 3D SLAM laser scanners for surveying, construction, engineering and site-documentation applications.

Browse our range to compare 3D laser scanners for mobile data capture and point-cloud surveying.

If you need help choosing a 3D laser scanner for your work, call 01 801 1335 or email sales@celticsurveys.ie for product advice.