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Updated Competence Database

The Competence database is based on the member's competence profiles in geometric and dimensional metrology. Each profile consists of several services which have been defined according to different dimensional metrology items (instruments, standards and artefacts, tools and methods, specific objects as well as supporting tasks).

The current database figures are:

  • 45 active members
  • 476 member records
  • 2776 services defined
  • 3045 available parameters
  • 1277 specified parameters
thread measurement in progress

Online Calculation

EVIGeM offers the possibility of calculating the pitch, diameter or indicated value for thread measurements according to the guideline EA-10/10 online on this website.


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Micromagnetic measurement technique

Micromagnetic measurement technique Magnetic measuring principles are based on the correlation between the objective surface zone parameters and the simultaneously appearing change of the electromagnetic material properties. Thus, methods like the Barkhausen noise analysis or the 3MA-method are restricted to materials with reasonable electrical and ferromagnetic...


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The EVIGeM members

Join the network

Additional organisations are invited to apply for a membership in the EVIGeM Virtual Institute. If you are interested in joining this network in the field of geometric and dimensional metrology, contact us and inquire about membership. Applications from companies and institutes offering technical expertise in any of EVIGeM’s dimensional subject areas and supporting tasks are always welcome.

Internetportal MMM ETH Zürich, Switzerland:

Measurement Science and Technology

Various glossary term:

Wormwheel (gear transmissions)

A wormwheel is the globoidal mating gear for a specific worm. Pressure angle and tooth thickness at the wormwheel tooth are governed by the corresponding dimensions of the worm teeth, as they occur at the pitch plane. The wormwheel tooth form is derived from the worm tooth form, which determines the formations of the tool for cutting the wormwheel tooth system, and also from the number of teeth in the wormwheel and the centre distance. Note: this definition relates to wormwheels that are allowance- and deviation-free. Reference: Freemann, Henry G.: Wörterbuch technischer Begriffe mit 6500 Definitionen nach DIN; Beuth Verlag GmbH Berlin Köln, 1992