INSTRUMENTS USED FOR MEASURING THE MAGNETIC PROPERTIES OF ONE KILOGRAM MASS STANDARD IN CENTER FOR MEASUREMENT STANDARDS (CMS)

Sheau-shi Pan, H. C. Lu, C. S. Chang

Abstract

We measured the volume magnetic susceptibility and permanent magnetization of 1 kg mass standards are measured under the circumstances of CMS mass laboratory. The method and calculation of uncertainty described here are referred to the experimental method and procedure developed by Davis; while the distance between magnetic sample and the weighs were measured with aluminium guide and the distance was determined by reading of laser interferometer. The effects of volume magnetic susceptibility and permanent magnetization on weights was real-time measured .The degree of real-time measured dependent upon the transient time of the balance. These results of susceptibility measurement were compared to the results of samples when they arrived CMS.

Download

IMEKO-TC3-2005-018u.pdf

DOI

-

IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

Back to the proceedings