Evaluation of an automated mass comparator performance for mass calibration of sub-milligram weights
| Autor: | Naoki Kuramoto, Yuichi Ota, Masaaki Ueki |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Comparator
Applied Mathematics 020208 electrical & electronic engineering 010401 analytical chemistry Ranging 02 engineering and technology Condensed Matter Physics 01 natural sciences Standard deviation 0104 chemical sciences Metrology Mass Test weight Control theory 0202 electrical engineering electronic engineering information engineering Calibration Standard uncertainty Electrical and Electronic Engineering Instrumentation Mathematics |
| Zdroj: | Measurement. 172:108841 |
| ISSN: | 0263-2241 |
| Popis: | Sub-milligram mass standards are important to ensure the reliability of small mass measurements. A mass comparator capable of accurately transporting and weighing sub-milligram weights was developed at the National Metrology Institute of Japan. This apparatus can handle weights of various shapes such as wire weight, sheet weight, and disk weight. The weighing tests of wire weights and sheet weights ranging from 1 mg to 0.1 mg were performed using the developed apparatus. The mass calibration of weight with a nominal mass of 0.1 mg was realized with a standard uncertainty of 0.075 μg by comparing the test weight and the reference weight. This paper describes the details of the developed mass comparator, the standard deviation of the weighing value of the weight obtained using this apparatus, and the uncertainty of mass calibration of sub-milligram weights. |
| Databáze: | OpenAIRE |
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