Some Issues in Magnetic Measurement of Mass Standards

Abstract:

Magnetic interactions may lead to errors in precision mass metrology. There are two factors named magnetic susceptibility and magnetic polarization which need to be determined before mass metrology. First four methods are compared and analyzed suitable range, requirement, uncertainty and note in comparison process. Then uncertainty factors are given out, and description of differences between normal weights and micro-gram standards are presented in the paper. It is easy to become magnetized if the weight is not well protected in manufacture or daily using. So it is important to control its safe and perform periodic self-verification on it.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 837-841
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.837
• Online since: January 2013
• Authors: Xiao Ping Ren, Jian Wang, Rui Lin Zhong, Chang Qing Cai, Yue Zhang
• Keywords: Magnetic Measurement, Magnetic Polarization, Magnetic Susceptibility, Mass Metrology

References

[1] Wang Jian, Yao Hong, Zhang Yue, et al. Investigation of influence quantity for reading stability on magnetic susceptometer , Proceedings of XIX IMEKO World Congress Fundamental and Applied Metrology. 2009 316-320.

[2] WANG Jian, YAO Hong, ZHANG Yue, et al. Influence of weight susceptibility on mass measurement process, Acta Metrologia Sinica. 30 (2009) 539-542.

[3] S Y Park, J S Kim, J B Lee, et al. A redetermination of the argon content of air for buoyancy corrections in mass standard comparisons, Metrologia. 41 (2009) 387–395.

DOI: 10.1088/0026-1394/41/6/005

[4] M. Gläser ,M. Mecke. Characterization of the magnetic field of a weighing instrument, Proc. of XVI IMEKO World Congress. 2000 1-5.

[5] National Mass and Density Metrology Technical Committee. Weight magnetic measurements and comparison summary report on http: /www. cma-cma. org/jlqjlzbd/2010/2010-3. pdf.

[6] Wang jian, Yao hong, Zhang yue, et al. Research of influence quality on magnetic susceptometer. Proceedings of Asia-Pacific Symposium on Measurement of Mass, Force, Torque. 2009, 81-87.

[7] XUE Liang , CHEN Xue-song, ZENG Bo, et al. Influence of conventional mass by weight susceptibility and measurement analyzing of it, China measurement and test. 36 (2010) 18-20.

[8] Richard S. Davis. Determining the magnetic properties of 1 kg mass standards. Journal of Research of the National Institute of Standards and Technology. 100 (1995) 209-225.

DOI: 10.6028/jres.100.015

[9] Madec T, Mann G, Meury P A, et al. Micro-mass standards to calibrate the sensitivity of mass comparators, Metrologia. 44 (2007) 266-274.

DOI: 10.1088/0026-1394/44/5/002

[10] Tanguy MADEC, Gaëlle MANN, Paul-André MEURY. Extension of dissemination of mass unit between 1 mg and 100 μg, Revue Francaise De Metrologie. 27 (2011) 29-38.

DOI: 10.1051/rfm/2011011

[11] Chung J W, Lee S J, and Kim K P. Establishment of mass standards from 1 mg to 50 μg 1, Proceedings of Asia-Pacific Symposium on Measurement of Mass, Force, Torque. 2009 66-70.

[12] Zhu Yaoming. Measurement of magnetic susceptibility of aluminum alloy used Curie magnetic scale method, Journal of instrument materials. 15 (1984) 28-33.

[13] Chang Shouwei, Zhang Jianfeng, Ban Chunyan, et al. Study on the susceptibility measurement of weak magnetic substance, Laboratory Science. 4 (2009) 145-147.

[14] J W Chung, J Y Do, B S Chon, and R S Davis. Effect of the earth's magnetic field on measurement of volume magnetic susceptibility of mass, Metrologia. 37 (2000) 65-70.

DOI: 10.1088/0026-1394/37/1/9

[15] Fu Yi-bin. Uncertainty evaluation and analysis on measurement result of weights magnetism, Metrology & Measurement Technique, 39 (2012) 41-43.

[16] J W Chung, K S Ryu, R S Davis. Uncertainty analysis of the BIPM susceptometer, Metrologia. 38 (2001) 535-541.

DOI: 10.1088/0026-1394/38/6/8

[17] Richard Davis. Magnetization of mass standards as determined by gaussmeter, magnetometers and susceptometer. XVII IMEKO World Congress Metrology in the 3rd Millennium (2003)286-289.