Absolute density measurements for standard sea-water by hydrostatic weighing of silicon sinker

Absolute density measurements for standard sea-water by hydrostatic weighing of silicon sinker
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通过硅沉子静压称重测量标准海水的绝对密度

DOI:
10.1016/j.measen.2021.100200
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发表时间:
2021
期刊:
Measurement: Sensors
影响因子:
--
通讯作者:
Uchida Hiroshi
Uchida Hiroshi
中科院分区:
--
文献类型:
--
作者:
Kayukawa Yohei;Uchida Hiroshi

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为了评价和提高海水热力学状态方程(TEOS-10)的精度,迫切需要对标准海水样品进行精确的密度测量。本研究研制了一种以硅单晶为材料的静压称重装置。密度测量的相对扩展不确定度为1.4 ppm,是现有密度测量设备中最高的。通过对正十三烷和纯水的测定,验证了密度测定的有效性。本文讨论了标准海水样品的测量结果。
To evaluate and improve the accuracy of the ther-modynamic equation of state for sea-water (TEOS-10), there are pressing needs for precise density measurements for stan-dard sea-water samples. In the present study, a hydrostatic weighing apparatus using a silicon single-crystal sinker was developed. The relative expanded uncertainty of the density measurement is 1.4 ppm which is the highest among the exist-ing density measurement equipment. The validity of the den-sity measurement was checked by measuringn-tridecane and pure water. Measurement results for standard sea-water sam-ples are discussed in this paper.
DOI: 10.1088/0026-1394/41/2/s06
发表时间: 2004
期刊: Metrologia
影响因子: 2.4
作者:
A. Waseda;K. Fujii
通讯作者: K. Fujii
用于海水密度测定的硅沉子的精确质量和体积测定
DOI: --
发表时间: 2014
期刊: --
影响因子: --
作者:
Y. Kayukawa;Y. Fujita
通讯作者: Y. Fujita