This paper presents a novel mass comparator designed for the purpose of measuring small weights of 2 mg and lower, with readability of 10 ng. The mass comparator was developed using new types of coil and actuator. The added protective ring decreased the average sorption-induced mass variation for the coil by 84%. The accuracy of the novel comparator was verified in terms of stability, Type An uncertainty, and repeatability. Compared to the device of the best available accuracy, the standard uncertainties of the novel-design comparator were approximately 70% narrower.

中文翻译：

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一种分辨率为 10 ng 的新型自动质量比较器，用于校准 2 mg 以下的质量

本文介绍了一种新型质量比较器，其设计目的是测量 2 mg 及以下的小重量，可读性为 10 ng。质量比较器是使用新型线圈和致动器开发的。添加的保护环将线圈的平均吸附引起的质量变化降低了 84%。在稳定性、A 类不确定性和可重复性方面验证了新型比较器的准确性。与具有最佳可用精度的设备相比，新型设计比较器的标准不确定度要窄约 70%。