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The influence of misalignment on the uncertainty of vertical torque calibration machine

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Abstract

Misalignment of torque calibration machines can cause parasitic bending loads inside the torque transducers in use. These parasitic loads may affect the machine uncertainty, specially for secondary torque calibration machines. Therefore, this study discusses the contribution of misalignment to the measurement uncertainty for a newly designed 3 kNm secondary vertical torque calibration machine. Radial axes shift up to 4 mm was applied which introduce small increased uncertainty.

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References

  1. A. Brüge, D. Peschel and D. Röske, The Influence of Misalignment on Torque Transducers, Proceedings of the 17th International Conference on Force, Mass and Torque Measurements (IMEKO TC3), Hofburg, Vienna, Austria, (2000).

  2. K.M. Khaled, Design, Construction, Performance Evaluation and Study the Effect of Misalignment of NIS 3 kNm Torque Standard Machine, Master Thesis, Faculty of Engineering, Cairo University, (2010).

  3. K.M. Khaled, G. Aggag, A.E. Abuelezz and M.G. Elsherbiny, Mechanical Design of NIS New Reference Torque Standard Machine, IMEKO 2010 TC3 Conference, Pattaya, Chonburi, Thailand, (2010) pp. 109–114.

  4. K.M. Khaled, G. Aggag, A.E. Abuelezz and M.G. Elsherbiny, Performance Evaluation of NIS New Reference Torque Standard Machine, IMEKO 2010 TC3 Conference, Pattaya, Chonburi, Thailand, (2010) pp. 269–272.

  5. Min-Seo Kim and A. Abusinna, Technical Protocol for a Bilateral Comparison in torque between KRISS (Korea) and NIS (Egypt), http://kcdb.bipm.org/appendixB/KCDB_ApB_info.asp?cmp_idy=1081&cmp_cod= CCM.T-K1.3&prov=exalead, in progress.

  6. Calibration of Static Torque Measuring Devices, DIN 51309, (2005).

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Authors and Affiliations

  1. National Institute for Standards (NIS), Giza, Egypt

    K. M. Khaled, G. Aggag & A. E. Abuelezz

  2. Faculty of Engineering, Cairo University, Cairo, Egypt

    M. G. Elsherbiny

Authors
  1. K. M. Khaled
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  2. G. Aggag
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  3. A. E. Abuelezz
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  4. M. G. Elsherbiny
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Corresponding author

Correspondence to K. M. Khaled.

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Khaled, K.M., Aggag, G., Abuelezz, A.E. et al. The influence of misalignment on the uncertainty of vertical torque calibration machine. MAPAN 26, 153–157 (2011). https://doi.org/10.1007/s12647-011-0015-4

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  • DOI: https://doi.org/10.1007/s12647-011-0015-4

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