In Situ Calibration of Optode-Based Oxygen Sensors
In Situ Calibration of Optode-Based Oxygen Sensors
复制标题
基于光极的氧传感器的原位校准
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Fukasawa
中科院分区：
文献类型：
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作者：
H. Uchida;T. Kawano;I. Kaneko;M. Fukasawa
在北太平洋，11个基于光学探头的氧传感器被用于船载水文测量。将光学探头传感器的氧数据与离散水样获得的高质量氧数据进行了比较，并对传感器的性能进行了评估。光学探头的传感膜片的响应随环境压力的增加而降低，发现这种压力效应使响应降低了3.2%（1000分巴）。提出了一个新的光学探头传感器校准方程。根据水样的氧数据对光学探头传感器进行校准，使得重现性小于1%。通过补偿由于光学探头响应时间慢而导致的光学探头数据中与温度相关的延迟，从光学探头获得了用于快速剖面电导率 - 温度 - 深度（CTD）观测的高质量氧剖面。
Eleven optode-based oxygen sensors were used for shipboard hydrographic casts in the North Pacific. Oxygen data from the optode sensors were compared with high-quality oxygen data obtained with discrete water samples, and the performance of the sensors was evaluated. The response of the sensing foil of the optode decreases with increasing ambient pressure, and this pressure effect was found to decrease the response by 3.2% (1000 dbar) 1 . A new calibration equation for the optode sensors was proposed. On the basis of oxygen data from water samples, the optode sensors were calibrated so that the reproducibility was less than 1%. High-quality oxygen profiles from the optode were obtained for fast-profiling conductivity– temperature–depth (CTD) observations, by compensating for the temperature-dependent delay in the optode data due to the slow response time of the optode.