| Project/Area Number |
26610154
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
UCHIDA Hiroshi 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 主任技術研究員 (00359150)
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| Co-Investigator(Renkei-kenkyūsha) |
KAYUKAWA Yohei 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ付 (50371034)
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| Research Collaborator |
TANAKA Tatsuya 株式会社マリン・ワーク・ジャパン
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 絶対塩分計 / 屈折率計 / 絶対塩分 / 屈折率 |
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| Outline of Final Research Achievements |
To solve problems in traditional salinity measurement and to realize the salinity measurement based on the definition, an absolute salinometer based on refractive index measurement was developed. The absolute salinometer was made by combining a commercially available spectral interference laser displacement meter with an optical measuring cell. Absolute Salinity can be measured with a range of 6 to 120 g/kg and a resolution of 0.13 mg/kg. Seawater samples whose salinity lower than 6 g/kg can be measured by using a standard seawater instead of using pure water as a reference liquid. Pure water and IAPSO Standard Seawater are useful for calibration of the absolute salinometer.
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