Determination of the Planck constant in the Kibble balance experiment requires, among other things, a precise control and knowledge of the speed and position of its major sensor: a coil immerged in a magnetic field. This paper presents our method to measure the coil unwanted angular movements ...
Summarizing the explanations on the previous pages, we designed a fully mechanical and flexure-based balance mechanism that can execute both modes of operation in the Kibble balance experiment—the weighing and the velocity mode. This mechanism constrains the trajectory of the moving components to a ...
Serendipitously, the Kibble balance experiment is carried out in two modes, the force and velocity mode, see below. In one the current needs to be measured in the other the voltage. The product of current and voltage is just formed numerically in the data analysis. One speaks of virtual ...
The magnet system in a Kibble balance and the coil-current effect. (a) presents the major elements in the fourth generation Kibble balance experiment at NIST. The left subplot of (b) is the sectional view of a typical permanent magnet system with symmetry, where the color map denotes the ...
ESTABLISHING AND CHARACTERIZING A PERMANENT MAGNET SYSTEM FOR THE PROTOTYPE OF NIS'S KIBBLE BALANCE The Kibble balance experiment is used to redefine the kilogram as a unit of mass based on the Planck constant. To demonstrate and understand the basic prin... S Emira,ER Shaaban,MM Rashad,.....
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The Kibble balance experiment is used to redefine the kilogram as a unit of mass based on the Planck constant. To demonstrate and understand the basic principle of the Kibble balance, the National Institute of Standards (NIS)-Egypt has constructed a prototype Kibble balance t...
KRISS Kibble balancemass measurementIn the revised international system of units (SI), the kilogram is realized through methods linking mass to the Planck constant such as the Kibble balance experiment and x-ray crystal density method. We report on the first experiment for kilogram realization at ...
A commercial Michelson interferometer has been used in UME's Kibble balance experiment. In this article, we determine the contribution of ultra-small oscillations to the Planck constant by taking simultaneous displacement measurements on two back-to-back mirrors attached to the piezoelectric transducer,...
National Metrology Institute of Turkey contributes to the ongoing worldwide scientific work on the realization of kilogram with an Oscillating-Magnet Kibble Balance experiment. The novel dynamical measurement procedure poses the advantage of being less sensitive to the environmental disturbances. Precise ...