News

Pioneering intercomparison of AC quantum voltage standards

BIPM travelling PJVS
BIPM travelling PJVS

BIPM, NPL and PTB comparison carried out as part of EMPIR project will be used to validate AC quantum voltage standard 

Primary quantum standards for direct current (DC) voltage are well established, and over the last decade, there has been substantial research activity on alternating current (AC) quantum voltage standards for applied AC measurements in industry and scientific research. However only a few NMIs in Europe have access to these AC quantum voltage standards. EMPIR project Towards the propagation of ac quantum voltage standards (14RPT01 ACQ-PRO) aims to develop the European measurement and research capacity, and extend access to facilities where it is currently limited. 

Thanks to the collaboration of BIPM in the project, a pioneering intercomparison of AC quantum voltage standards has been arranged and will start in the first half of this year. The BIPM, NPL and PTB comparison will be used to validate the AC quantum voltage standard design. The design is based on the combination of a PJVS and ultra-stable synthesiser so different waveform can be compared. This will serve as a basis for future worldwide comparisons of AC quantum voltage standards. Increasing the number of NMIs using these standards will encourage research and development on electrical metrology for industrial applications.

Select your area of interest
New software for the detection of cardiovascular disease
2021-03-30

Cardiovascular diseases are the leading cause of death globally, but an EMPIR project has provided a new tool to fight these disorders more

EMPIR project workshop on radiotherapy attracts more than 50 people
2021-03-24

EMPIR project workshop ‘How the metrology can support radiotherapy coupled with hyperthermia’ provides valuable insight more

World Water Day 2021
2021-03-22

EURAMET projects support the monitoring of harmful chemicals to help protect water health and aquatic biodiversity throughout Europe more

Invited keynote address on EMPIR research about realising the redefined kelvin
2021-03-22

Presentation to be given at ‘Sensor and Measurement Science International’, hybrid conference: face-to-face and virtual, 3 – 6 May 2021, Nuremburg, Ge... more

Registration open: EURAMET – BIPM training course on comparisons in thermometry
2021-03-17

Registration is now open for the EURAMET - BIPM training course on comparisons in thermometry more