Bilateral comparisons of measurement capabilities for the calibration of low nominal capacity torque measuring devices between NMIJ and PTB in the range from 0.1 N m to 10 N m using different procedures |
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| Affiliation: | 1. National Metrology Institute of Japan, AIST, Tsukuba, Japan;2. Physikalisch-Technische Bundesanstalt, Braunschweig, Germany;1. Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran;2. Department of Applied Mathematics, Islamic Azad University, Rasht Branch, Rasht, Iran;1. National Institute for Standards (NIS), Giza, Egypt;2. Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany;3. Faculty of Engineering, Cairo University, Giza, Egypt;1. Departamento de Posgrado e Investigación, Maestría en Ciencias en Ingeniería Mecatrónica, ITTG, Tuxtla Gutiérrez, Chiapas, Mexico;2. Departamento de Posgrado e Investigación, Maestría en Ciencias en Ingeniería Bioquímica, ITTG, Tuxtla Gutiérrez, Chiapas, Mexico;1. Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9L 0G2, Canada;2. Trent School of The Environment, Trent University, Peterborough, ON K9L 0G2, Canada |
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| Abstract: | Bilateral comparisons of the calibration of low nominal capacity torque measuring devices (TMDs) were conducted between NMIJ and PTB for the first time. A 10 N m deadweight torque standard machine (TSM) newly developed at NMIJ was compared with PTB’s two TSMs with nominal capacities of 1 N m and 1 kN m, in the range from 0.1 N m to 10 N m. The transfer measurement devices used had nominal capacities of 1 N m and 10 N m. The comparisons were made using two calibration procedures: one based on the CCM.T-K2 Key Comparison procedure and the other according to the daily calibration procedure adopted at each institute. As a result, the torque realized by the TSM at NMIJ was shown to be equivalent to that realized by the two TSMs at PTB. In addition, it was confirmed that the daily calibration procedures of both institutes yielded consistent results in the calibration of low nominal capacity TMDs. |
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| Keywords: | Torque standard Low nominal capacity torque Comparison Torque measuring device |
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