Realizing the ampere by levitating a superconducting mass-a suggested procedure

By observing the current in a superconducting coil required to levitate a superconducting body and, separately, the voltage induced when the body is moved with the current still flowing, the electrical and mechanical units of power can be related to realize the ampere in a way which avoids errors ar...

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Bibliographic Details
Published inIEEE transactions on instrumentation and measurement Vol. 32; no. 1; p. 144
Main Author Kibble, Bryan P.
Format Journal Article
LanguageEnglish
Published IEEE 01.03.1983
Subjects
Cryogenics
Electric variables measurement
Magnetic field measurement
Magnetic flux
Magnetic levitation
Magnetic separation
Superconducting coils
Superconductivity
Viscosity
Voltage
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Summary:By observing the current in a superconducting coil required to levitate a superconducting body and, separately, the voltage induced when the body is moved with the current still flowing, the electrical and mechanical units of power can be related to realize the ampere in a way which avoids errors arising from unaccounted dissipative work.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.1983.4315026