Voltage balance for replacing the kilogram

Bego, V.; Butorac, Josip; Poljancic, K.

doi:10.1109/19.377912

Cited by 26 publications

(14 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For mass values in the region of 10 mg and below, the electromagnetic Kibble balance principle becomes more difficult to apply and the electrostatic Kibble balance [ 158 ] is better suited. The size of the geometric factor in an electromagnetic Kibble balance is driven by two competing requirements.…”

Section: Future Directionsmentioning

confidence: 99%

The watt or Kibble balance: a technique for implementing the new SI definition of the unit of mass

2016

View full text Add to dashboard Cite

The redefinition of the SI unit of mass in terms of a fixed value of the Planck constant has been made possible by the Kibble balance, previously known as the watt balance. Once the new definition has been adopted, the Kibble balance technique will permit the realisation of the mass unit over a range from milligrams to kilograms. We describe the theory underlying the Kibble balance and practical techniques required to construct such an instrument to relate a macroscopic physical mass to the Planck constant with an uncertainty, which is achievable at present, in the region of 2 parts in 10 8 . A number of Kibble balances have either been built or are under construction and we compare the principal features of these balances.

show abstract

Section: Future Directionsmentioning

confidence: 99%

The watt or Kibble balance: a technique for implementing the new SI definition of the unit of mass

2016

View full text Add to dashboard Cite

show abstract

“…The technique is also applicable to watt balances which employ electrostatic actuators. The electrostatic, or voltage, watt balance technique was originally described in [20]. The original balance employed a fixed plate and a moving plate which was hung from a sensitive balance.…”

Section: Electrostatic Balancesmentioning

confidence: 99%

Simplified fundamental force and mass measurements

Robinson

2016

Metrologia

View full text Add to dashboard Cite

The watt balance relates force or mass to the Planck constant h, the metre and the second. It enables the forthcoming redefinition of the unit of mass within the SI by measuring the Planck constant in terms of mass, length and time with an uncertainty of better than 2 parts in 10 8 . To achieve this, existing watt balances require complex and time-consuming alignment adjustments limiting their use to a few national metrology laboratories. This paper describes a simplified construction and operating principle for a watt balance which eliminates the need for the majority of these adjustments and is readily scalable using either electromagnetic or electrostatic actuators. It is hoped that this will encourage the more widespread use of the technique for a wide range of measurements of force or mass. For example: thrust measurements for space applications which would require only measurements of electrical quantities and velocity/displacement.

show abstract

“…Con esta intención se han iniciado algunos proyectos como Levitación magnética de un superconductor cuya idea original corresponde a Sullivan y Frederich como una posibilidad de realizar el ampere (Sullivan & Frederich, 1977), La balanza de tensión eléctrica desarrollado por la Universidad de Zagreb, Croacia (Bego, Butorac & Poljancic, 1995) y el PTB de Alemania (Funk & Sienknecht, 1991), el Conteo de iones de oro desarrollado por el PTB de Alemania (Gläser, 2003); sin embargo los dos proyectos que van a la vanguardia sobre la redefinición del kilogramo son La balanza de Watt y del Número de Avogadro.…”

Section: Proyectos Para La Redefinición Del Kilogramounclassified

Sobre La Redefinición Del Kilogramo

Becerra

Gutiérrez

2011

Ingeniería

View full text Add to dashboard Cite

Voltage balance for replacing the kilogram

Cited by 26 publications

References 5 publications

The watt or Kibble balance: a technique for implementing the new SI definition of the unit of mass

The watt or Kibble balance: a technique for implementing the new SI definition of the unit of mass

Simplified fundamental force and mass measurements

Sobre La Redefinición Del Kilogramo

Contact Info

Product

Resources

About