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Tobias Bergsten

Forskare

Tel
+46 10 516 51 16
Email
tobias.bergsten@ri.se
Location
Borås
ORCID
0000-0003-2330-9898
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Publications
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Project

Ac-Realisation of Resistance with Graphene (VaRG)

This project aims to establish a primary realisation of ac resistance at RISE through ac measurements of the quantum Hall effect (QHE) in graphene. This will lead to a significantly reduced measurement uncertainty for ac resistanc…
Project

Programmable graphene resistance standards

The project will develop and test programmable resistance standards of graphene.
Project

Metrology for supraharmonics

The project will develop methods for traceable calibration of power quality meters that measure supraharmonics.
Project

Realization of electrical resistance in alternating current

The project has developed measurement systems and graphene samples for the realization of electrical resistance in alternating current and impedance using the Quantum Hall Effect. Using the new methods the calibration of standards…
Project

Superconducting graphene arrays (SUGAR)

The project will develop next-generation electrical resistance standards and thereby improve the realizations of resistance, current and mass. The technology is based on so-called Quantum Hall Arrays built with the nanomaterial gr…
Story

Ampere and electrical metrology

Ampere is the SI unit for electric current, a flow of electrons in a conductor. Electric current allows us to turn on the light, use mobile phones or computers, drive cars, anything that is powered by electricity. Along with volt …
Expertise

Electric voltage

Electric dc voltage is an area of expertise at the National Measurement Laboratory for Electrical Quantities. We realise the unit related to electrical potential difference (voltage), volt, by utilizing the Josephson effect. …
Expertise

Electric current

Electric dc current is an area of ​​expertise at the National Measurement Laboratory for Electrical Quantities. We are realising the national standard for the current unit ampere (A). Ampere is defined as the charge unit coul…
Expertise

The National Laboratory for Electrical Q

RISE is Sweden's NMI (National Metrology Institute) and is, according to the Swedish constitution, responsible for the fundamental measurement quantities in the International System of Units, SI.
Expertise

Electrical resistance

Electrical resistance is an area of expertise at the National Measurement Laboratory for Electrical Quantities. At our laboratory the resistance unit is realised  with the highest possible accuracy. In addition…
Publications
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