Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

INTERGEO 2010: High-speed Laser Scanners for Railways and Roads

05.11.2010
Fraunhofer IPM had extremely fast laser scanners on show at the INTERGEO 2010 trade fair in Cologne, Germany. These eye-safe high-tech systems can record more than one million measuring points per second, measuring their distances down to a millimeter if required by customers or the application.

At INTERGEO 2010, the Freiburg based Fraunhofer Institute for Physical Measurement Techniques IPM had the latest developments in the field of fast distance measuring with laser scanners on show.

Apart from their outstanding scientific expertise, the measurement technology specialists also presented their years of experience in building complete system solutions. In recent years Fraunhofer IPM has acquired numerous customers worldwide thanks to the institution’s tailor-made system solutions, particularly for railway-specific applications.

Mobile mapping applications are growing in relevance in the road transport arena. This is where the fast, accurate, and eye-safe laser scanners from Fraunhofer IPM can prove their strengths as well.

New systems for railways

There are two different ways that laser scanners can contribute to smoothly flowing railway traffic: For mobile applications, the scanner is mounted on the train and measures the desired position data of objects near the track while moving past them. For stationary applications, the laser scanner remains at a fixed position at a monitoring station next to the track and measures the geometries of passing trains.

* Contact wire position recording: Recording the position of the contact wire is a common application for use on inspection cars. Today, state-of-the-art complete systems from Fraunhofer IPM record 400 measurement profiles per second. In this way, at a speed of 100 km/h, the desired position data can be obtained for up to four contact wires simultaneously at intervals of 7 cm, along with online analyses.

* Detecting objects and structures near the rail track: Another mobile application serves to detect objects and structures near the rail track, such as platforms, tunnels, or bridges. The required position and safety clearance data are recorded with the help of a circular scanner mounted on the front of the inspection train. Fraunhofer IPM's basic scanner uses one laser beam and a scan frequency of 200 Hz, while the high-speed version has two laser beams and a scan frequency of more than 550 Hz.

* Train monitoring: Train monitoring performed directly in the course of normal railway operations can increase rail track safety significantly – particularly in sensitive track sections such as tunnels or bridges. To this end, monitoring stations are equipped with laser scanners from Fraunhofer IPM at suitable places alongside the track. Passing cars together with their freight can then be checked for geometric irregularities with 800 measurements per second. This means that at a speed of 100 km/h, the train's geometry is measured at intervals of around 3 cm.

Road data – a new application

Mobile mapping vehicles were also an important subject at INTERGEO 2010. These are measuring vehicles that record the road and its surroundings. Fraunhofer IPM has developed special high-resolution scanners for this application that scan the road surface. These so-called pavement scanners measure elements such as ruts, transverse grooves, or frost cracks with a view to obtaining data on pavement quality. Mounted on a vehicle at a height of around 3 m above road level, the laser scanner is easily capable of recording road surface widths of 4 m while delivering a resolution of less than 1 mm.

About Fraunhofer IPM
The Fraunhofer Institute for Physical Measurement Techniques IPM develops and implements turn-key optical sensor and imaging systems. These mostly laser-based systems combine optical, mechanical, electronic and software components to create perfect solutions of robust design that are individually tailored to suit the conditions at the site of deployment. In the field of thermoelectrics, the institute occupies a leading position in materials research, simulation, and systems design. In thin film technology, Fraunhofer IPM works on materials, production processes, and systems; semiconductor gas sensors form a further field of activity.
Your contact:
Dr. Heinrich Höfler
Head of Department Optical Measurement for Production
Head of Railway Measurement
Phone +49 761 8857-173
heinrich.hoefler@ipm.fraunhofer.de

Holger Kock | Fraunhofer-Gesellschaft
Further information:
http://www.ipm.fraunhofer.de
http://www.ipm.fraunhofer.de/fhg/ipm_en/solutions_services/railroad_meas_tech/index.jsp

More articles from Trade Fair News:

nachricht IVAM Product Market „High-tech for Medical Devices“ at COMPAMED 2017
18.10.2017 | IVAM Fachverband für Mikrotechnik

nachricht Fiber Optic Collimation C-Lenses will be Exhibited by FISBA at OFC 2017
14.03.2017 | FISBA AG

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Osaka university researchers make the slipperiest surfaces adhesive

18.10.2017 | Materials Sciences

Space radiation won't stop NASA's human exploration

18.10.2017 | Physics and Astronomy

Los Alamos researchers and supercomputers help interpret the latest LIGO findings

18.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>