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Contrary to a full contact measurement, similar non-contact laser-based handheld measurements are made without actual contact to the measured profile. This demands an extremely high level of profile attendance prior to measuring as the laser does not distinguish between the profile and any layers of dirt, oil, grease etc. If the profile is not cleaned thoroughly, a laser-based measurement will reflect the profile surface plus any unremoved layers. Obviously, if the collected data does not reflect the actual profile, it can have critical consequences for following decisions in maintenance, safety and budgets. Do you trust your measurement?

您测量的是什么? The actual profile or the accumulated surface?

Full contact
Measures the true profile with highest accuracy
Cuts through surface contaminants
Not sensitive to light and reflective surfaces
Human tactile sensing and real-time feedback
Makes a scanned picture of the surface
Does not distinguish between dirt and profile
Sensitive to light and reflective surfaces
No tactile or visual feeling with the profile

No sensitivity to reflecting light

A MiniProf system is suitable for use in any working environment as the full contact measuring principle is not challenged by environmental factors.

In contrast, the non-contact measuring principle can be severely challenged by reflective surfaces from the sun, white frost, rain drops, dew on the rails etc. Even reflections from newly turned wheels or rails can disrupt a non-contact measurement.

The environmental sensitivity should therefore be considered carefully when working with laser-based equipment, especially in specific geographical areas dominated by sun, rain or snow and in manufacturing and reprofiling facilities.

Never underestimate the importance of a full contact measurement!










Download our article about the
full contact measuring principle​
Download the MiniProf BT brochure​
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Your option for direct interaction and professional discussion with carefully selected and specialized MiniProf Academy partners!
MiniProf Academy

If you plan to visit Rolling Stock Networking in Derby, UK, we welcome you to visit MiniProf agent CoMech Metrology at stand B2 for a presentation of the MiniProf systems and the powerful Envision software.

Learn all about the advantages of the secure and reliable full-contact MiniProf profile measurements and how to benefit from the powerful Envision software in your daily work.

To schedule a meeting in advance, do not hesitate to contact the CoMech MiniProf team.

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