This article first appeared in the Railway-News Magazine Issue 3 2023.
Across the rail industry, metrology is an increasingly used tool for ensuring production productivity and quality is improved and wastage is minimised without compromising passenger comfort and safety.
In manufacturing and maintenance, the integration of advanced inspection technology is a necessity. Each area of the railway production process has high potential for productivity gains by introducing improved inspection methods.
Hexagon has the ground-breaking metrology and automation expertise needed to understand and deliver solutions to various challenges.
Train wheelsets and rail infrastructure are typical wear parts and have significant effects on passenger comfort and safety as well as noise and ride. Profiles of wheels, brake discs, rails and switches are therefore regulated by recurring measurement operations in demanding operating conditions. The challenge lies in Measurement & Testing Services the efficient generation of valid measurement data for the entire wheel-rail system. Efficient wheelset profile measurement can drive timely maintenance actions and help minimise train downtime, as well as ensuring a smooth and safe journey for rail passengers.
Hexagon’s 2D laser profilers, automated on-track systems or portable measuring arms combined meet the specific demands of the railway industry by delivering accurate and reproducible results, independent of operator influence. These specialised rail profile measurement devices are widely used for wheel profile inspection, brake disc measurement, wheel distance measurement, wheel wear inspection and rail wear inspection.
2D Laser Profiler
Designed to measure all common train wheel, brake and track profiles, handheld rail measurement devices provide quick and correct evaluations with high repeatability.
The unique CALIPRI principle from Hexagon is a development of laser light section technology for non-contact dimension and profile measurements. It involves an innovative technology automatically correcting tilts and rotations of the measurement device. The result: highly accurate, reproducible, and user-independent measurement results – by hand and within seconds. Never again struggle with imprecisely positioned gauges: CALIPRI replaces error-prone and imprecise inspection devices.
Railway-News magazine Issue 1, February 2023: NEXTSENSE GmbH - Highly Precise Profile Measurement for Predictive Maintenance.
Railway-News magazine Issue 4 Rolling Stock edition, November 2022: NEXTSENSE – From Measurement to Demand Planning – Closing the Loop with CALIPRI.
Railway-News magazine Issue 3, September 2022: NEXTSENSE GmbH – New for Rail: Automated On-Track Measurement of Wheel Profiles.
Railway-News magazine Issue 2, June 2022: NEXTSENSE - Predictive Wheelset Management: From Measurement to Demand Planning
Railway-News Magazine Issue 1, March 2022: NEXTSENSE GmbH – Digitalisation of Wheel Profile Measurement in Freight Transport.
Railway-News magazine Issue 5, November 2021: NEXTSENSE - Equivalent Conicity – Safety Parameter in Railways
Railway-News Magazine issue 3 2021: Nextsense – How China’s Metros Are Benefitting from Faster, More Reliable Profile Measurements
Hexagon | Nextsense launches an easy-to-use cloud storage and analysis tool for calipri measurement devices, enabling predictive maintenance.
The rail plays a central role in the wheel-rail-system. In order to reliably fulfill its functions, regular maintenance is crucial.
Nextsense, measurement expert for the rail industry, has developed the CALIPRI Track Geometry Gauge – an add-on to their well-known systems.
mgw Service uses contactless, laser-based CALIPRI wheel profile measurement gauge for preventive maintenance.
Use the form opposite to get in touch with NEXTSENSE GmbH directly to discuss any requirements you might have.