European Partnership on Metrology · 25RPT03
Advanced digital infrastructure for harmonised temperature metrology
D4Temp builds an open, machine-readable, and decentralised infrastructure for temperature measurement and dissemination — connecting Digital Calibration Certificates, the digital SI, and self-sovereign identity across 17 European institutes.
Project code
25RPT03
Duration
36 months
Start date
June 2026
End date
May 2029
Coordinator
TÜBİTAK
Partners
17 across 14 countries
About the project
A harmonised approach for digitalised temperature metrology
Temperature is the most widely measured parameter in industry. Calibrating temperature sensors through automated data collection, storage, and processing is of great interest to the thermometry community, the health sector, and industry — it shortens calibration times and reduces errors.
D4Temp focuses on the implementation of a common, compatible digital infrastructure for temperature measurement and dissemination using open-source solutions. The project supports emerging National Metrology Institutes and Designated Institutes in extending their capabilities and acquiring knowledge, experience, and competencies in the digital realm.
Across six work packages the consortium delivers shared software libraries, end-to-end automated workflows that produce Digital Calibration Certificates (DCCs), and a decentralised architecture for secure, eIDAS-aligned exchange of measurement data.
Project structure
Six work packages
Creating a common basis for the successful implementation of digitalisation tools
WP1 identifies and gathers the standards, practices, resources, and developments relevant to digitalisation in temperature metrology. The findings are consolidated into an implementation plan tailored to NMI/DI structures and disseminated through learning tools and platforms, building a shared knowledge base across the consortium.
Learn moreWorkflow definition and library development
WP2 establishes the foundation for sharing software solutions across NMIs/DIs — harmonising processes and enabling smart specialisation. It identifies in-scope resources, defines a common database structure, and populates a shared repository with libraries for temperature-related software, designed for ISO 17025, DCC, and FAIR compliance.
Learn moreAutomated digital workflows for temperature calibration
WP3 develops and implements end-to-end automated workflows for digital temperature calibration. It defines harmonised data types and exchange formats aligned with FAIR, Digital SI, and DCC principles; then maps workflows to libraries from WP2 and implements automated digital workflows for contact and radiation thermometer calibration — tested with blackbox methods and producing harmonised DCCs.
Learn moreDecentralised architecture for secure and interoperable exchange of DCCs
WP4 develops an EBSI-based decentralised architecture for data immutability and self-sovereign identities — the first application of EBSI in metrology. It integrates this trust layer with the project's digital workflows and DCCs, enabling universally accepted, verifiable calibration certificates across Europe in line with FAIR principles, Digital SI, and the eIDAS ecosystem.
Learn moreCreating impact
WP5 secures the long-term uptake and impact of the project — through dissemination and communication aimed at the metrology community, industry, regulators, and the wider public, and through exploitation activities that handle IP, licensing, and uptake in line with the Grant Agreement and Consortium Agreement.
Learn moreManagement and coordination
WP6 handles the day-to-day management, coordination, and reporting that keep the consortium aligned — covering financial and administrative coordination, periodic project meetings, and formal reporting in line with EURAMET requirements.
Learn moreStay informed as the project evolves
Follow project deliverables, news, events, and publications. Consortium members can access the dedicated working space.