Project: Towards quantum-based realisations of the pascal

Acronym QuantumPascal (Reference Number: 18SIB04)
Duration 01/06/2019 - 31/05/2022
Project Topic Despite minimal improvements in performance over decades, industrial and scientific measurements of gas pressure are still made with manometers containing toxic mercury. Piston gauges are more accurate but require exchange of weights during calibration and can be slow, bulky, complex, and require additional methods below 3 kilopascals. In theory, the drawbacks could be fixed using photon-based devices that use helium or other gases as the calculable reference substance. Miniaturisation could also enable faster, cheaper, calibration-free measurements. The project will develop photon-based standards, applying quantum methods showing potential as a replacement primary standard of the SI unit of pressure, the pascal. Various methods will be tried, some pioneering, combined with new calculations of thermodynamic and electromagnetic gas properties. Performance will then be compared with current primary pressure standards. Technologies developed will be promoted to end users and standards bodies: as quantum-based realisations of the pascal could enable more accurate and versatile pressure measurement methods, to benefit other fields of metrology, wider science, industry and manufacturing.
Website visit project website
Network EMPIR
Call EMPIR Call 2018

Project partner

Number Name Role Country
1 Physikalisch-Technische Bundesanstalt Coordinator Germany
2 Centro Español de Metrología Partner Spain
3 Conservatoire national des arts et métiers Partner France
4 Institut za Kovinske Materiale in Tehnologije Partner Slovenia
5 Istituto Nazionale di Ricerca Metrologica Partner Italy
6 Laboratoire national de métrologie et d'essais Partner France
7 RISE Research Institutes of Sweden AB Partner Sweden
8 Fondazione Bruno Kessler Partner Italy
9 University College London Partner United Kingdom
10 Umeå Universitet Partner Sweden
11 Uniwersytet Warszawski Partner Poland
12 WIKA Alexander Wiegand SE & Co. KG Observer Germany