Wideband AC quantum tracebility
Public support
Provider
Ministry of Education, Youth and Sports
Programme
—
Call for proposals
9B
Main participants
Český metrologický institut
Contest type
RP - Co-financing of EC programme
Contract ID
MSMT-10101/2024
Alternative language
Project name in Czech
Wideband AC quantum tracebility
Annotation in Czech
A practical traceability route for AC measurements based on thermal converters relating AC values to DC values has been established at NMIs and DIs for many decades, however this is limited to RMS values only and requires long measurement times. The new SI realisation of the ampere based on quantum standards allows direct traceability for AC measurements. New techniques and tools for the digitalisation of the traceability chain for AC electrical quantities have been developed in a series of EMRP and EMPIR projects. However, these must be further improved to establish the link between quantum standards and calibrations with a broader frequency and amplitude range for widespread implementation. This project will implement quantum techniques for AC measurement voltage in the increased bandwidth up to 100 kHz and amplitude to 10 V by utilising a sub sampling differential method, develop three working implementations of a wideband quantum voltmeter standard which will be validated via a comparison, plus algorithms and software. This will reduce the uncertainties of AC voltage measurement, speed up calibration services, and provide the ability to switch from RMS voltage to measuring real harmonic components. 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 NMIs and DIs.
Scientific branches
R&D category
AP - Applied research
OECD FORD - main branch
20201 - Electrical and electronic engineering
OECD FORD - secondary branch
—
OECD FORD - another secondary branch
—
CEP - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
JA - Electronics and optoelectronics<br>JB - Sensors, detecting elements, measurement and regulation
Solution timeline
Realization period - beginning
Jun 1, 2024
Realization period - end
May 31, 2027
Project status
B - Running multi-year project
Latest support payment
Feb 14, 2025
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP25-MSM-9B-R
Data delivery date
Mar 5, 2025
Finance
Total approved costs
6,849 thou. CZK
Public financial support
3,424 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK