Results 11 to 20 of about 68,608 (308)
Introducing Joint Research Project «Quantum Ampere» for the realisation of the new SI ampere [PDF]
EPJ Web of Conferences, 2014 The metrology community lately has adopted the long-term aim of basing the SI unit system on fundamental constants of nature. The base electrical unit, the ampere, will then be re-defined in terms of a fixed value of the elementary charge e.
Scherer Hansjörg +5 more
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The ampere and electrical standards
Journal of Research of the National Institute of Standards and Technology, 2001 This paper describes some of the major contributions to metrology and physics made by the NIST Electricity Division, which has existed since 1901. It was one of the six original divisions of the National Bureau of Standards. The Electricity Division provides dc and low-frequency calibrations for industrial, scientific, and research organizations, and ...
Randolph E. Elmquist +7 more
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An absolute determination of the ampere [PDF]
Bureau of Standards Journal of Research, 1934 Harvey L. Curtis, R.W. Curbs
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tm - Technisches Messen, 2020 Abstract The revision of the International System of Units (SI), implemented since 20 May 2019, has redefined the unit of electric current, the ampere ( A), linking it to a fixed value of the elementary charge. This paper discusses the new definition and the realisation of the electrical units by quantum electrical metrology standards ...
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Redefinition of the Ampere [PDF]
Measurement and Control, 2014 In this short review, we discuss the planned redefinition of the SI unit for electrical current, the ampere. We focus on the work National Physical Laboratory has been doing in this respect to develop a single-electron source capable of realising the new definition with the required precision.
J. D. Fletcher +4 more
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, 2021 This book contains the accepted abstracts for the conference AMPERE 2021. The extension to writing a full paper is optional, and when a full paper has been written, the abstract is replaced with this. All presenters are also encouraged to upload their full paper indivdually to the Zenodo community, for easier search and access.
Hedekvist, Per Olof, Raaholt, Birgitta
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AIMS Electronics and Electrical Engineering, 2019 This paper proposes an automated fault isolation and diagnostic chain for the health monitoring of a linear actuator composed of a roller screw driven by a permanent magnet synchronous motor.
Ryan Michaud +5 more
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AIP Advances, 2018 Electromagnetic interference (EMI) filters design is a rather difficult task where engineers have to choose adequate magnetic materials, design the magnetic circuit and choose the size and number of turns.
Fabien Sixdenier +4 more
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