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http://dx.doi.org/10.4283/JKMS.2004.14.6.201

Construction of AC-DC Magnetic Field Standard Systems and Results of International Key Comparison  

Park, Po-Gyu (한국표준과학연구원, 전자기표준연구부)
Kim, Young-Gyun (한국표준과학연구원, 전자기표준연구부)
Publication Information
Journal of the Korean Magnetics Society / v.14, no.6, 2004 , pp. 201-206 More about this Journal
Abstract
The AC-DC magnetic field standard systems were constructed for the calibration of magnetometers for low magnetic field and the tests for low magnetic field characteristics of sensors and materials. In the range of 1 mT, the expanded uncertainty of dc is 8${\times}$10$\^$-6/, ac uncertainties are 0.16% in 0.1～1 kHz, 0.26% in 1～5 kHz, and 0.44% in 5～20 kHz. We have been participated in international key comparison(KC) to achieve the equality and the mutual agreement between standard institutes for the results of calibrations and tests. KRISS participating in ac-dc magnetic flux density of KC got equal level of uncertainty results compare with the advanced nations. It confirm that measurement ability of magnetic flux density is high level in the world.
Keywords
magnetic field; compensation of Earth′s magnetic field; coil constant; international key comparison;
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