Videos about wideband quantum traceability now available

Developing European metrology capability with the generation of a new wideband AC quantum standard

Metrology Partnership project Wideband AC quantum traceability (23RPT01, WAC) is working to bring together emerging and advanced European metrology institutes to develop a wideband quantum-based voltmeter operating at frequencies up to 100 kHz.

This will enable lower uncertainties for calibrations of multimeters, power quality meters and others, enabling higher-value devices and better characterisation of metrology products. Lower uncertainties will support further development and upcoming research of measurement devices. AC voltage meters and calibrators are used in the production of electronic components related to electricity grids such as capacitors, inductors and AC resistors, and reduced uncertainty will result in improved manufacturing processes.

The project will also create a comprehensive description and documentation of the new methods and standards, enabling efficient uptake of the new capabilities especially by less experienced National Metrology Institutes (NMIs) and Designated Institutes. This will reduce the uncertainties of AC voltage measurement and speed up calibration services.

This work will help to meet Europe’s aim of carbon-neutrality by 2050, which involves an increased use of renewable energy and higher precision grid monitoring.

The videos

Two videos about wideband AC (WAC) quantum traceability are now available:

Introduction: Wideband AC quantum traceability (WAC)
WAC - Differential sampling and subsampling

More videos will be released during lifetime of the project. The videos are useful for any party interested in implementing the new subsampling method with a quantum standard. That could be National Metrological Institutes, calibration laboratories or other companies requiring the lowest uncertainties available.

Project coordinator Martin Sira from CMI, Czechia’s NMI, said

‘The best way to learn a new measurement method is to try it yourself with a working setup. This is not always possible, and we have found the videos are the next best thing. Papers, equations and software are important, but to see the devices connected and working gives much better overview and greatly helps to understand a new concept. The videos will show to all interested companies that the method is relatively simple and can be implemented to already existing quantum standards quite easily. A wide adoption of the new method will lead to a substantial decrease of uncertainties in low frequency voltage measurement’.

This Metrology Partnership project has received funding from the European Partnership on Metrology, co-financed by the European Union Horizon Europe Research and Innovation Programme and from the Participating States.

Want to hear more about EURAMET?