How Does a 3D Laser Scanner Work?

How Does a 3D Laser Scanner Work

If you’re wondering how 3D laser scanner works, read on. There are many different types of scanners on the market. In this article, we’ll discuss how each one works, including Time-of-flight and Phase shift laser 3D scanners. But first, what is a point cloud? Point clouds are a collection of data files which are registered and merged to produce a three-dimensional representation of the object. These point clouds are then post-processed using software packages suited to the application.

Phase Shift Laser 3D Scanners

Phase Shift Laser 3D Scanners

Phase shift laser 3D scanners are becoming more popular, but which is right for your application? This article will examine the differences between these scanners. A time of flight scanner has a beam width of about one million points per second, while a phase based scanner has a range of 300 meters or more. While each has its pros and cons, both types of scanners provide accurate measurements. This article will explore some of the differences between phase shift scanners and time of flight scanners.

A time-of-flight scanner measures distance by measuring the phase shift of light reflected off an object. This method is the same as time-of-flight scanners, but has better accuracy. This type of scanner is designed to scan large objects and environments, such as buildings and industrial facilities. A terrestrial laser 3D scanner often uses this technology. Some models even include dynamic SLAM algorithms to improve accuracy. Nevertheless, the technology is still evolving and is a good investment for any industry.

Time-of-Flight Scanners

There are three major types of 3d laser scanners: PS, TOF, and hybrid. Each type has its advantages and disadvantages. The difference between these three types is in their sensitivity to surface changes. PS scanners are more sensitive to changes in surface roughness, colour, and humidity. TOF scanners also exhibit higher sensitivity to surface changes, but they are not as sensitive as PS scanners. The key to choosing a right scanner is to find the right combination of these factors.

Time-of-flight (TOF) scanners measure the vertical and horizontal angles of the objects. These scanners are relatively slower than phase-based scanners because they must occupy all positions in the grid. Compared to phase-based scanners, time-of-flight scans have greater range and shorter acquisition time. Their range is typically around 300 meters. Both time-of-flight and phase-based scanning methods are effective for 3D measurement applications.

Hand-Held Scanners

Hand-Held Scanners

Hand-held 3D laser scanners have several advantages, such as the ability to scan objects and people quickly. These scanners can be moved around, rotated around, and even rotate the object itself. The ability to rotate the object around may make the scanning process easier, and can save time when working in complex areas. The downside to hand-held 3D laser scanners is that they do not provide as high of an accuracy level as stand-alone models.


In contrast, hand-held 3D laser scanners can capture fine details and free-form shapes. The scanning process is incredibly fast and allows the researcher to capture the object without the need to set up a scanning station. The researchers used a hand-held GeoSLAM ZEB HORIZON scanner to scan the rockery. The scan took approximately forty minutes, and the total number of points was about 320 million.

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