Calibration of Weights and Weight Sets Based on Micro-Mass Standard Measurement System

Abstract:

The growing and evolving dynamics in mass and force measurements has inevitably necessitated the need for high precision and accurate results. As a result, measurements in micro-gram (s) and nanoNewtons levels have increasingly attracted potential research interests. In an effort to develop such solutions, the National Institute of Metrology (NIM) has set up a new robot system CCR10 (readability 0.1μg) for accurate measurements of weight (s) ( 1 mg). This system is based on computer controls and linear-drive trains, and is used for calibration/verification of weight (s) below 10 g. A detailed description of the robots metrological parameters and calibration results thereof is presented in the current paper. Keywords: Micro Weights; nanoForce; Automatic Mass Comparator; Robot System; Calibration

• Periodical: Key Engineering Materials (Volumes 609-610)
• Pages: 1473-1477
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.609-610.1473
• Online since: April 2014
• Authors: Xiao Ping Ren*, Jian Wang, Yue Zhang, Wilson Ombati
• Keywords: Automatic Mass Comparator, Calibration, Micro Weights, Nanoforce, Robot System

References

[1] X.P. Ren, J. Wang, R. L. Zhong, et al. Some Issues in Magnetic Measurement of Mass Standards[J]. Advanced Materials Research, 2013(631-632): 837-841.

DOI: 10.4028/www.scientific.net/amr.631-632.837

[2] X.P. Ren, C.Q. Cai, J. Wang, et al. Applications of Metrological Measurement in Wind Power Generation[J]. TELKOMNIKA: Indonesian Journal of Electrical Engineering, 2012, 10(6): 1249-1253.

[3] M. S. Kim, J. R. Pratt. SI traceability: Current status and future trends for forces below 10 micro-Newtons [J]. Measurement, 2010, 43: 169-182.

DOI: 10.1016/j.measurement.2009.09.005

[4] D.B. Newell, J.A. Kramar, J. R. Pratt, et al. The NIST Microforce Realizationand Measurement Project[J]. IEEE Transactions on instrumentation and measurement, 2003, 52(2): 508-511.

DOI: 10.1109/tim.2003.810032

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

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

[6] T. Madec, M. Gaëlle, P. A. Meury. Extension of dissemination of mass unit between 1 mg and 100 μg [J]. Revue Française de métrologie, 2011(27) 3: 29-38.

DOI: 10.1051/rfm/2011011

[7] M. S. Kim, J. H. Choi, Y. K. Park. Test of a microbalance below 1 mg using the electrostatic load and micro weights[C]. Proceedings of Asia-Pacific Symposium on Mass, Force and Torque (APMF 2007), 2007, 142-146.

[8] T. Frohlich, T. Fehling, B. Gatzemeier, et al. Mass dissemination using a fully automated mass comparator robot system[C]. IMEKO 20th TC3, 3rd TC16 and 1st TC22 International Conference Cultivating metrological knowledge 27th to 30th November, 2007. Merida, Mexico.

[9] Zoltan Z. Dissemination of the unit of mass in a fully automatic mass laboratory using subdivision. Proceedings of XIX IMEKO world congress fundamental and applied metrology, 2009, 6-11, Lisbon, pp.277-279.

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

[11] X.P. Ren, J. Wang, H. Yao, et al. Review of microgram standards metrology. Journal of Huazhonguniversity of science and technology (nature science edition), 2012, 40(II): 91-97.

[12] Arthur R. A new mass comparator generation for the automatic calibration of weight sets[C]. Proceedings of the 17th international conference on force, mass, torque and pressure measurements, IMEKO 2001, 17-21, 310-319.

[13] Masaaki U., Kazunaga U. Uncertainty evaluation on the fully-automated sub-multiple calibration in the milligram range[C]. Proceedings of SICE annual conference 2007, 17-20, Ibaraki, 200, 24-28.

DOI: 10.1109/sice.2007.4420944

[14] OIML. R 111-1: 2004, Weights of classes E1, E2, F1, F2, M1, M1–2, M2, M2–3, and M3 Metrological and technical requirements[S]. France: OIML, (2004).

DOI: 10.7717/peerj.6557/fig-3

[15] T. Fehling,T. Frohlich,D. Heydenbluth. Design and Performance of the new Sartorius Robot-System[C]. IMEKO 20th TC3, 3rd TC16 and 1st TC22 International Conference Cultivating metrological knowledge, 2007: 1-8.