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Development of a Large Force Standard Machine with Built-in Force Transducers
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 Title & Authors
Development of a Large Force Standard Machine with Built-in Force Transducers
Gang, Dae-Im; Lee, Jeong-Tae; Song, Hu-Geun; Kim, Eom-Gi;
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 Abstract
Force measuring devices should be calibrated to guarantee their test results. In order to establish the force standards in Korea, deadweight machines of 5 kN, 20 kN, 100 kN and 500 kN capacity and a hydraulic force standard machine of 2 MN capacity were installed at the Korea Research Institute of Standards and Science(KRISS). As heavy industries in Korea have been developed, we should measure large forces over 2 MN capacity precisely in industries. We developed a 10 MN force standard machine with built-in force transducers which is more compact and cheaper than hydraulic force standard machines which have been widely used as large force standards in most national metrology laboratories. Test results reveal that the relative expanded uncertainty of the force machine is less than 4.1 10-4 in the range of 1 MN-4.5 MN.
 Keywords
Built-in Force Transducer;Force Standard Machine;Calibration;Uncertainty;Deadweight Force;
 Language
Korean
 Cited by
 References
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