Engineers trial new surveying methods in Kentucky. Parts of the “Big Bat Cave” are precisely recorded with 3D laser scanners. An extremely demanding project: There is hardly any light underground and it is very confined in places.
The Big Bat Cave is a great attraction for cave explorers and nature-lovers. The history of the area comes to life here; rare crayfish, crickets and bats are at home there. For the “Kentucky Karst Conservancy” , conservation of the landscape and nature is a matter of top priority, and in the engineers of QK4, Louisville, they found highly capable supporters.
The experts are testing new methods of acquiring data when surveying – and one of them is recording using 3D laser scanners. The engineers swapped their traditional surveying tools for a FARO Focus3D X 130 laser scanner whilst systematically and digitally recording the “Big Bat Cave” system in three dimensions. An exciting and groundbreaking experiment, which engineer Ben Shinabery explains step by step.
The three dimensional measurement is carried out from various standpoints using precisely defined reference points. The laser scanner takes around 8 minutes for each setting, measuring almost 1 million points per second in a 360-degree radius. This provides the surveyors with point clouds, which are then processed on the computer. FARO SCENE software is ideal in this context for creating three-dimensional models. The surveying team worked through the cave metre by metre, including through some tight spots which were difficult to access.
In this cramped, dark environment the advantages of the FARO Focus3D X 130 laser scanner come into their own: small and light, quick to set up and dismantle, and easily transported in the cave. Non-contact scanning delivers true-to-scale and ultra-precise data. The initial results were impressive. Project manager Ben Shinabery: “Now almost anyone can use the 3D models for scientific analysis: students, scientists and consultants.”
Kentucky is a region well-known for its caves – including the Mammoth Cave National Park, the longest known cave system in the world. However, its little sister in Breckinridge Kentucky also has its charms, as shown by this project. Now it is to contribute to preserving and protecting it. A first impression of the 13.9-mile cave system recorded to date is provided by the fly-through, which carries you off into the widely ramified system of underground corridors.
An unprecedented success story began ten years ago when iQvolution AG of Ludwigsburg, Germany, was acquired by FARO Technologies, Inc. This global market leader in the area of portable coordinate measuring machines added 3D laser scanners to its array of products as a result.
“We are confident that this step will push the continuing development of our 3D laser scanning technology towards new products and strengthen the global expansion of our market presence”, said Dr. Bernd Becker, founder of iQvolution and now Chief Technology Strategist at FARO Europe, commenting on the merger – and he was proven right.
A whole range of innovative developments in the areas of 3D laser technology and computer-aided measuring systems bear witness to success. FARO has been ahead of the market for years. How about some examples? In 2006, FARO introduced a laser scanner that allowed three-dimensional measurements to be taken outdoors – and this was a sensation. A short time afterwards, the company again surprised the market when they presented the Photon laser scanner.
The big breakthrough came in 2010 – only five years after taking over the 3D laser scanner line of business and incorporating it into the FARO portfolio: FARO developed the smallest and lightest laser scanner in the world. Furthermore, this high-tech device was as easy to use as a digital camera. The company showcased its consistent ongoing developments with the Focus3D X 130 and the Focus3D X 330, which allow an even greater range while providing excellent and precise measurement results. The 3D documentation business also sustained further growth that year with the Freestyle3D models – top-quality high-precision hand scanners.
In December 1836, the London terminus of the world’s first passenger railway, the London & Greenwich Railway, opened. Almost 180 years later and known as London Bridge Station, the UK’s fourth busiest railway station still reflects some of its early 19th century origins, being an elevated structure built on brick arches, but the complex has since been expanded and reconfigured piecemeal many times.
In addition FARO Laser scanner Focus3D aids Costain in improving its capture and sharing of field data to being a terminus, the station now also caters for through services, including cross-London Thameslink connections, but by the early 2000s the station had become a bottleneck hampering rapid movement of both passengers – some 56 million use the station each year – and trains. To remove the bottleneck and to expand passenger capacity by 40 per cent, Network Rail set about transforming London Bridge station.
Six low-level platforms for terminating services were to be raised to the height of the platforms of through services; the total of through platforms would be increased from six to nine; and a new single concourse at the foot of London’s iconic Shard was to be constructed – and all while continuing to operate passenger rail services through the station and allowing interchange with London Underground, local bus and taxi services, and onward journeys on foot or by bicycle.
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We will showcasing our FARO Focus3D Laser Scanner with accompanying FARO Scene Software. The smallest and lightest laser scanners on the market – FARO Focus3D X Series are ideal tools for indoor and outdoor applications. The fast and accurate laser scanners Focus3D offer everything you might expect from professional 3D laser scanners – with FARO’s established and well-known level of simplicity.
Also being demonstrated will be the groundbreaking FARO Scanner Freestyle3D. The new FARO Freestyle3D is a premium quality, high-precision handheld 3D scanner that can quickly and reliably documents rooms, structures and objects in 3D and create high-definition pointclouds. The highly efficient scanner is suitable for all applications in which installations or properties must be precisely and quickly measured from various perspectives. Thanks to its lightweight carbon fibre body, the FARO Freestyle3D weighs less than a kilogram, rendering it extremely portable and mobile.
To find out how to register for the GeoData Event click here and head up to Edinburgh on the 12th of November!
Seibersdorf Laboratories have recently conducted research into the potential for damaging of artworks exposed to a laser scanner FARO Focus3D X was investigated. The issue to asses was if the absorption of laser light in the superficial layers of paint and varnish on canvas can lead to an increase in temperature that could deteriorate the quality of the artwork.
Computer modelling was used to calculate the highest rise in temperature achievable in a worst-case exposure scenario. The question of this study was if it is possible to rule out the possibility for thermally-induced damage of paintings when using the laser scanner FARO Focus3D X. Other potential effects such as photochemical interactions or accelerated ageing provoked by extended exposures over the course of days or more go beyond the scope of the present study.
Given the unknown physical properties of the irradiated artworks, conservative values along with a worst-case exposure scenario (such as the scanner remains on one path and the scanner head does not turn in the horizontal plane, but also regarding choice of optical and thermal properties) were considered. In view of this, the rise in temperature at the surface of the painting was calculated to be less than 2 degrees. Considering that the scanner head also turns in horizontal direction, one spot on the painting would be exposed for less than 10 seconds at the lowest angular speed (0,004 revolutions per minute), during which the calculated rise in temperature was less than 1,3 °C.
Figure 1. Calculated time-temperature history at the surface of the painting exposed to the laser scanner FARO Focus3D X (distance 1 m, minimum rotation frequency)
Such increase is less than, or as a worst case of the order of magnitude of temperature variations that can be observed indoors purely from ambient air temperature, even in a museum where the ambient temperature is controlled. Thus it can be excluded that paintings undergo temperature-induced deterioration after exposure to the laser scanner FARO Focus3D X.
Moreover, it can be ruled out that the melting point of the components of dried oil paint and hardened superficial layers (e.g. varnish) can be reached in the chosen exposure scenario, thus ruling out the possibility of a phase change. Similarly, it can be assumed that the change in thermal and optical properties is negligible over the range of 2°C around ambient temperature.
With around 100 participants involved in the FARO, Autodesk & UCL AEC tech collaboration day, the event itself seems to have gone down very well indeed. We would like to thank all those who took part and helped make this event happen with a special shout out to Autodesk and the guys over at UCL for all their support.
Due to the success of the event we plan to hold an annual event so stay tuned for more details..
Check out the latest music video from German Post-Punk band Sizarr, Made using our very own FARO Focus3D Laser Scanner to create point clouds it creates a refreshingly original music video through the production of pointilistic effect.
Want to find out more about our versatile product range? Then head over to our FARO website!
Cant be bothered to read? Fear not for we have a FARO YouTube Channel too!
To be held on the 17th of June at the Darwin Building we invite you to join us on a FARO and Autodesk AEC tech collaboration day, to be hosted by and held in association with the University College London.
Point Clouds are becoming the new currency of 3D as built documentation. With the latest innovations in Autodesk software and the continued development of FARO’s laser scanning technology, the integration of point clouds into AEC workflows has never been easier with such possibilities for accurate modelling, as built verification and visualisation.
To find out more about the event and how to register then click here!
An opportunity for geospatial technology manufacturers and service providers to meet face-face with their users to demonstrate the latest technological advances in equipment, explore solutions and capabilities and to collaborate on design issues and options for future developments and requirements.
FARO will also be in attendance promoting the FARO Focus3D Laser Scanner with accompanying FARO Scene Software. The smallest and lightest laser scanners on the market – FARO Focus3D X Series are ideal tools for indoor and outdoor applications. The fast and accurate laser scanners Focus3D offer everything you might expect from professional 3D laser scanners – with FARO’s established and well-known level of simplicity.
Also being demonstrated will be the groundbreaking FARO Scanner Freestyle3D. The new FARO Freestyle3D is a premium quality, high-precision handheld 3D scanner that can quickly and reliably documents rooms, structures and objects in 3D and create high-definition pointclouds. The highly efficient scanner is suitable for all applications in which installations or properties must be precisely and quickly measured from various perspectives. Thanks to its lightweight carbon fibre body, the FARO Freestyle3D weighs less than a kilogramme, rendering it extremely portable and mobile.
Date:27th-28th May 2015
The agenda offers over 40 sessions with 3D professionals from a vast array of industries. Plus you will also have the possibility to interchange with FARO and 3D experts, who will also be in attendance at the 3D exhibition.
The event includes leading industry speakers, workshops and hands-on-training in the areas of
and will address solutions to business and technology challenges facing the aforementioned industries.
Join this once in a lifetime experience and take the chance to get new impressions, new findings, and make new contacts!
Looking for some FARO insights? Then why not join us on the 20th for a Manufacturing Tour at FARO’s European Headquarter in 70825 Korntal-Muenchingen, which is closely situated to the event itself.
To find out more about the event then click here!