Evaluation of automatic sub-multiple mass calibration for sub-milligram weights at NMIJ
Evaluation of automatic sub-multiple mass calibration for sub-milligram weights at NMIJ
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NMIJ 亚毫克重量自动亚多重质量校准的评估
DOI:
10.1016/j.measurement.2022.111320
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发表时间:
2022
期刊:
影响因子:
5.6
通讯作者:
Kuramoto N.
中科院分区:
文献类型:
--
作者:
Ota Y.;Ueki M.;Kuramoto N.
Mass standards are essential for the precise measurement of mass. Due to the increasing demand for small mass measurements, it is essential to be able to disseminate the sub-milligram mass standard from the National Metrology Institutes. Recently, the National Metrology Institute of Japan has developed an apparatus for mass calibration of sub-milligram weights by automatically transporting the weights. Consequently, the masses of the weights can be calibrated accurately and reliably. Sub-multiple calibration is often used for accurate mass calibration of weights smaller than 1 kg. In this study, by combining this method with the developed apparatus, the mass calibration uncertainty of sub-milligram weights was improved. The mass calibrations of 0.1 mg, 0.2 mg, and 0.5 mg weights were performed with standard uncertainties of 0.019 µg, 0.023 µg, and 0.040 µg, respectively. These uncertainties were smaller than the calibration uncertainties obtained by manually transporting sub-milligram weights to an ultra-micro balance.
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影响因子:
2.4
作者:
M. Gläser
通讯作者:
M. Gläser
影响因子:
2.4
作者:
S. Davidson;A. Vǎlcu;N. Medina;J. Zuda;L. Snopko;Irena Kolozinska
通讯作者:
Irena Kolozinska
影响因子:
5.6
作者:
Ota Y.;Ueki M.;Kuramoto N.
通讯作者:
Kuramoto N.
DOI:
10.1016/j.precisioneng.2021.07.006
发表时间:
2021
影响因子:
3.6
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通讯作者:
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