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Martial Wüthrich: “The rollDetect roll measuring system developed by us together with Bühler is easy to use and yet works very accurately.”
RELIABLE, CONSISTENT MEASUREMENT RESULTS: An interview with Martial Wüthrich, Managing Director of Diavite AG, on measuring techniques for rollers
You have been producing devices for measuring surface condition for many years. What has changed since then, with regard to the requirements for these special measuring devices?
Are there fundamental differences within the family of probing instruments for measuring surface roughness?
In tactile measurement, we distinguish between two measurement methods. For portable measuring devices, we use mostly skid probes. The runner on the probe forms the reference
Martial Wüthrich: Above all, the evaluation electronics have been improved. Thanks to various features, the measurement results are displayed faster, more accurate and are more user friendly. Graphics to explain the two different stylus used for Of course, the standards have also changed rolls. Diamont stylus for smooth rollers and needle stylus during this time and the scanning of the for corrugated rollers surface had to be adapted accordingly. The roughness of the surface can be measured optically or by touch.
Diavite AG concentrates on the production of tactile measuring instruments. Why?
The costs of the two systems are very different. Although optical measurement does not give better results in everyday life, optical measuring instruments are about three times more expensive than tactile ones. Tactile measuring is simpler, equivalent in terms of results, less susceptible to corrupted data, and also cheaper. It is clear that far more tactile measuring devices are in use than optical systems. 52 | October 2020 - Milling and Grain