3D Laser Scanning Defined

Laser scanning-also named laser surveying-was launched in 1998 and soon became synonymous with the automotive and electronics industries. Since then, though, the use of laser surveying has slowly increased, so far organisations as varied as police departments and archeological societies are using laser survey today. An illustration of how laser surveying has extended its scope over the past decade can be seen in the recent survey of the Mount Rushmore statue in May 2010, where survey experts surveyed the enormous structure to gather its surface details, which will be preserved and used for repair purposes as the sculpture is undergoing gradual erosion, or in the event of drastic destruction.You may find more details about this at scantech-international.

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 The 3D laser scanning device used for the procedure was imported from Scotland-a condition not unusual in today's scanning society, where surveying companies and survey equipment manufacturers routinely offer their services to cross-continental scanning ventures. Because of the precipitation anticipated in the Mount Rushmore region, water-resistant scanning equipment was used, which proved necessary as surveyors encountered frequent fog, rainfall and snow during their incremental scanning of the sculpture. While the use of time-of-flight scanners, which use a laser rangefinder to calculate surface data from long distances, could have shortened the length of the project greatly, triangulation scanners were used, which have a more narrow scanning range but greater accuracy.

 

In addition to scanning the Mount Rushmore monument, the survey team also surveyed for restauration purposes the memorial park that lies beneath the sculpture, scanning various structures and terrains like Flags Road, Presidential Trail, and amphitheatre. Scanning ventures have one thing in common irrespective of their scanning needs: the need to collect the exact physical details of an object, area, or environment. To this end, the use of a 3D laser scanning device has four fundamental benefits over conventional surveying methods: it costs less money; it takes less time; it provides more accurate results; and the scanning information is easier to store than reams of 2D drawings, although many scanning vendors do sell interested customers 2D drawings of scan details.

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Despite the obvious benefits of laser surveying over conventional surveying, some businesses remain out of experience with the latter, and also because the relative newness of scanning technology causes others think scan results would be difficult to interpret for those unfamiliar with laser scanning. However, in most instances, scanning companies include scan data that is already in the customer's appropriate file types, including different polygon mesh models, surface models, and solid CAD models, which can then be modified and controlled by the customer through a user friendly gui. Several businesses also procure their own scanning equipment. But on a smaller budget the most affordable option is to employ scanning services.

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Scanners help telecommunications companies in at least three ways. First, they help them locate the best paths for telecommunications equipment via topographical surveying. Second, they help them to ensure the equipment coheres with its environment. Third, scan data can be helpful for maintenance, troubleshooting and rerouting paths of line.