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Application Analysis of GUM Method and Adaptive MCM Method in Uncertainty Evaluation of Seawater Salinity Measuring Instrument Calibration Device |
WANG Peng-peng1, ZHAO Shi-wei1, LIU Yuan-yuan2, MENG Wen-rong1 |
1. NO.32217 Army of PLA, Yantai, Shandong 264100, China
2. NO.63850 Army of PLA, Baicheng, Jilin 137001, China |
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Abstract The GUM method and the adaptive Monte Carlo method (adaptive MCM method) were used to evaluate the measurement uncertainty of the seawater salinity measuring instrument verification device, and the GUM method was verified by the adaptive MCM method. Four kinds of designs were also designed to verify the impact of the air buoyancy term. The results showed that the measurement uncertainty based on the adaptive MCM method was very close to the GUM method. The GUM method has been verified at each detection point, but the adaptive MCM method was simpler and more accurate, which provided a simple method for establishing military salinity standard; the estimated salinity error caused by the air buoyancy term was ±0.0003, and the uncertainty introduced was small. The reproducibility and environment of the seawater salinity measuring instrument verification device was an important part of the measurement uncertainty evaluation, especially for the measurement uncertainty evaluation of low salinity detection points, which had influence on the traceability of salinity.
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