Scanning Hardware
Frequently Asked Questions
What are the differences between short-range and long-range scanners?
Short-range scanners are designed for capturing detailed measurements over shorter distances, typically within a few meters, and are ideal for applications like indoor mapping and industrial inspections. Long-range laser scanners, on the other hand, can capture data over several hundred meters and are used for large-scale outdoor surveys, such as topographic mapping and infrastructure projects.
Which performance specifications and features make scanners unique?
Laser scanners are unique due to their high accuracy, precision and the ability to capture millions of data points in only minutes. Key performance specifications include range, point density, scan speed, field of view and accuracy. Advanced features often include automatic scan registration, real-time data processing and integration with other surveying instruments and software.
How can I save time with a scanner in the field?
Scanners with auto-calibration and self-levelling features save significant time by automating the initial setup and ensuring optimal accuracy without manual intervention. Auto-calibration reduces the need for frequent manual adjustments and ensures the scanner is always operating at peak performance. Self-levelling ensures that the scanner is properly aligned before each scan, reducing setup time and minimizing errors.
These features allow surveyors to focus on data collection and analysis, streamlining the overall workflow and enhancing productivity.
How can I save time in post-processing back in the office?
Automatic scan registration in the field allows surveyors to align and merge multiple scans in real-time, reducing the need for extensive post-processing in the office. This feature ensures that data is correctly aligned on-site, saving significant time and effort in the office for data cleaning, alignment and processing.
How can I manage the large quantity of data produced by a scanner?
Managing the large quantities of data produced by a scanner can be effectively handled through several strategies. Utilizing data compression and efficient storage solutions, such as high-capacity SSDs, can help manage the volume. Additionally, employing specialized software allows for the segmentation and filtering of point clouds, focusing on relevant data while discarding unnecessary information. Cloud storage and processing services can also be leveraged to store and manage data remotely, enabling easy access and collaboration without overloading local resources.
What can you actually do with a point cloud?
A point cloud is used to create detailed 3D models and digital representations of the surveyed area. It can be processed and analysed for various applications, including creating BIM models, conducting structural analysis, volume calculations, and generating accurate topographic maps.
How does scanning compare to conventional data capture?
Scanning data provides higher accuracy, speed and detail compared to conventional data capture methods. It captures comprehensive and dense datasets in a fraction of the time, with minimal human error, and can be used in environments where traditional methods may be challenging or unsafe.
What is the complete workflow when using a laser scanner?
The complete scanning workflow involves planning the survey, setting up the 3D laser scanning system, capturing the data, then processing the data. With field software, you can capture and perform initial processing of the scans in the field. The data is then transferred to office software for detailed processing, analysis and creation of deliverables such as 3D models, point clouds and topographic maps. Cloud storage can be used to both store and share the massive datasets created by scanning systems.
How long does it take to learn how to scan? What is the set-up process?
Learning to operate a scanner can take a few hours to a couple of days, depending on the complexity of the equipment and the user’s familiarity with surveying technology. The set-up process is very simple as compared to older equipment, and involves positioning the scanner, calibrating it (or waiting for self-calibration), selecting the appropriate settings for the survey, and performing a test scan to ensure accuracy before capturing the full dataset.