EMPIR project videos explaining aspects of magnetic calibrations and measurements freely available

Image showing bar magnet. Iron filings show magnetic field lines.
Bar magnet. Iron filings show magnetic field lines.

Assessing and addressing deficiencies in European metrology for magnetic measurements and calibration

EMPIR Capacity Building project Traceability Routes for Magnetic Measurements (TRaMM, 21SCP02) is a training project, where INRIM, the NMI for Italy, is transferring knowledge and expertise in the field of magnetic measurements and calibrations to CEM and NSAI, the NMIs for Spain and Ireland respectively. This will extend the European capabilities for measurements in this technical area, where currently only four NMIs have the ability to perform traceable measurements of all of the most important magnetic quantities.

Traceable magnetic measurements are important for a number of applications including: power transformers, electrical motors, cleaner transportation systems, cleaner energy sources including wind turbines, sustainable ways of improving our lifestyle, better technologies for diagnostics and therapy, and understanding exposure levels to electromagnetic fields of workers or of the general population close to specific appliances

The transfer of knowledge and expertise has taken place through a series of high-level training events, expert training material and laboratory demonstration videos, both online and in INRIM laboratories.


A video explaining the overall aims of the project is available.

The PhD course video lecture series consists of the following modules:

  • Introduction to magnetism
  • Magnetostatics
  • Magnetic interactions
  • Electromagnetics
  • Magnetisation processes
  • Hard magnetic materials
  • Magnetoresistance

The laboratory demonstrations videos cover the following topics:

  • Wattmeter
  • Ballistic method
  • DC probe 50 mT – 1 T
  • DC probes – low fields
  • Hard magnetic materials IEC 404.5
  • Inductive measurements theory
  • Inductive measurements
  • Magnetometers
  • VNA measurements theory
  • VNA measurements
  • VNA

Project coordinator Marco Coisson from INRIM said

‘The TRaMM project has helped in our understanding that the metrological services currently offered by NMIs are extremely important, but must be updated to fit with the new needs of stakeholders, working on novel magnetic materials and sensors for the energy, automotive, health and information technology industries.

Bringing to the industry and to the metrological level the latest techniques in the field of magnetic materials and measurements is a challenge that the metrological community will have to face in the next months and years, and the TRaMM project is building the foundations for that development to happen’.

This EMPIR project is co-funded by the European Union's Horizon 2020 research and innovation programme and the EMPIR Participating States.

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