Laser-Based Wheel Force Diagnostic system (Lasca)

Laser-based wheel force diagnostic system (Lasca) is used to measure wheel-rail forces and evaluate tread damages under operating conditions.

Laser-Based Wheel Force Diagnostic system (Lasca)

With the help of its international partners, ADOR Tech designs and manufactures The Laser-Based Wheel Force Diagnostic system that (Lasca) can monitor each wheel fully automatically via the wheel force diagnosis from the operational use.

In addition to railways, it can also be used for trams. It provides "condition-based maintenance" for your vehicles. LASCA provides LGA/ TUV certification. The German Railway Authorities (EBA) has approved our monitoring system for all track types and speeds.

The Lasca detects the following wheel/axle properties and errors during the passing:

  • Wheel load
  • Wheel flat
  • Polygons
  • Out of roundness

By wayside monitoring the vehicles in use and the graphical data-handling, itself-calibrating monitoring system, there is a convenient tool for integrated quality management. It allows statistical data collection and immediate notification of limits(flats). The selective investigation of abnormal wear on the wheel and bogie is possible through the evaluation of the dynamic running behavior of the vehicles.


  • Externally certified by TÜV Rheinland and EBA
  • Fully automated, mobile, long-term stable
  • All track types, no modification
  • 40 km/h - 400 km/h
  • Self-calibrating, self-learning
  • Limit values based on vehicle type
  • Graphical data presentation
  • Centralized evaluation and trend observation

At ADOR, as Dr. D. Wehrhahn's representative in Canada, we have integrated our engineering and commercial expertise to provide customers with tailor-made solutions. We are ready to provide technical and engineering services for sophisticated and complex necessities of every inquiry based on the skills and experience of our staff, resources, and capacities. Get in touch to discuss your requirements!


1- Laser-assisted, directional train detection of the rail (bending moment).

2- Long-term stable, positive fit sensors clamped attachment without opening the superstructure.

3- Quick installation and maintenance in natural train break without affecting train transport through standardized and pre-assembled modules.

4- Easy adjustment of sensors with optical adjustment (light spot on the sensor produces a voltage division, similar to the center tap of sliding resistance).

5- Removable, mounted on-ring beam and weather protection.

6- No removal in track maintenance (plug, grinding).

7- No impairment of train detection systems.

8- EBA approval for all track and track systems at all speeds.


 1- Network-based, synchronous data acquisition of 24 channels, 16-bit resolution, and 500kHz sample rates.

2- Integration of digital inputs and outputs for software-controlled processes.

3- Graphical configuration of the monitoring system with live display of the raw signals-direct control of all settings via remote maintenance.

4- Hardware and software for automatically controlled monitoring of the overall system.

5- Integration of externaldata sourcessuch asTrainbusnumbers, transponder.

6- Encrypted communication levels over LAN, Internet, Mail, FTP, radio, SMS-File formats: XLS, XML, TXT.

7- Graphic data processing in the customer's server through database synchronization with a track machine.

8- Operating system from Windows 7.


Modular software for automatic wheel, axle, and vehicle identification and assessment according to customer-specific limits, such as:

  • Flat spots and spalling in number and mm/ wheel.
  • Runout in the form and power/ wheel.
  • Load shifts in axle bogie and vehicle.
  • Dynamic running behavior of the vehicles.
  • Graphical data processing
  • Modulare signal lines

Technical Details

Listed below are the general technical specifications of our Laser-Based Wheel Force Diagnostic system (Lasca). For the complete specifications in details, please download the catalog at the bottom of the page.

Measuring Sensor: Laser-based deformation measurement of the track

The number of measuring points: 2 x 6, clamped in sleeper compartments

Speed: 0 to 380 km/h, optimal maximum operating speed on the intended use

Temperature range track: -45°C up to +70°C

Measuring distance / Settlement wheel: ca. 4000 mm, = wheel dia. 250 mm until 1273 mm


Please enter your information to download our Laser-Based Wheel Force Diagnostic System (Lasca) catalog.