Abstract
This paper presents the estimation of the uncertainty of the torque standard machine manufactured and integrated at the Vietnam Metrology Institute. The uncertainty is composed of the uncertainty of component quantities such as arm length, weight, frictional moment, shaft tilt, and load oscillation… From that, an estimate of the uncertainty of the primary torque standard was made. The machine with dead weight is designed in the torque range of 2 kNm, horizontal shaft, integrated with rotary air bearing to minimize the coefficient of friction. The standard arm of the machine is made from Invar material, has a low coefficient of thermal expansion, has an adjustment to compensate for manufacturing errors, and ensures the standard length. This research is one of the national projects aimed at creating the primary torque standard machine in Vietnam of 2 kNm with measurement uncertainty 5 × 10–4.
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References
Carbonell JAR, Verdecia JLR, Robledo AL (2006) Torque standard machines at CEM. In: XVIII IMEKO world congress, metrology for sustainable development, September 17–22, 2006 Rio de Janeiro, Brazil
Yon-Kyu P, Min-Seok K, Jong-Ho K, Jae-Hyuk C, Dae-Im K (2007) Establishment of torque standards in Kriss of Korea. In: IMEKO 20th TC3. 3rd TC16 and 1sd TC22 international conference
Ramirez-Ahedo D, Torres-Guzman JC, Martinez-Juarez F (2007) Hybrid torque standard machine for 1 kNm developed in CENAM. In: IMEKO 20th TC3, 3rd TC16 and 1st TC22 international conference, cultivating metrological knowledge, 27th to 30th November. Merida, Mexico
Doğan C, Akkoyunlu O, Kuzu C (2002) National metrology institute of Turkey (UME) development of the 1 kNm static torque standard machine at UME. In: 18th IMEKO TC3 conference on Force, mass and torque 2002, Proceedings of a meeting held 24–26 September 2002, Celle, Germany
Oliveira RS, Guilherme RF, Cabral LC (2012) Influence of operational parameters on a hand-operated torque standard machine. Measurement 45(10)
Test Report Certificate No.: 1501-00281-002 (2015) KRISS (Korea Research Institute of Standard and Science)
Van Duy V, Thang VT, Van Hung P (2017) Evaluation of measurement uncertainty for torque standard machine using air rotary bearing. Appl Mech Mat (AMM) 870:215–222. ISSN 1662-7482. https://doi.org/10.4028/www.scientific.net/AMM.870.215
Acknowledgements
This research is funded by Vietnamese Government under the project number ĐTĐLCN.49/15. The authors would like to thank Associate Professor Vu Khanh Xuan for his serving as scientific advisor.
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Van Duy, V., Ha, P.T., Huong, T.T.T., Thang, V.T. (2023). Estimating the Uncertainty of the Torque Standard Machine at Vietnam Metrology Institute. In: Long, B.T., et al. Proceedings of the 3rd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2022). MMMS 2022. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-31824-5_54
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DOI: https://doi.org/10.1007/978-3-031-31824-5_54
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