Calibration, Response, and Hysteresis in Deep-Sea Dissolved Oxygen Measurements
Calibration, Response, and Hysteresis in Deep-Sea Dissolved Oxygen Measurements
复制标题
深海溶解氧测量中的校准、响应和滞后
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
N. Larson
中科院分区：
文献类型：
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作者：
B. Edwards;D. Murphy;C. Janzen;N. Larson
摘要
准确测量海洋中的溶解氧浓度一直是大量研究的课题。传统上，剖面氧测量的校准和修正集中在静态、稳态误差上，而传感器响应中的动态或与时间相关的误差在很大程度上未得到处理。本研究对重新设计的海鸟电子公司溶解氧克拉克电极（SBE 43）进行了评估，并展示了在海洋温度和压力条件下传感器时间响应的特性，以及对一种与时间相关的、由压力引起的滞后效应的处理，这种滞后效应在深海氧剖面中尤为明显。温度和压力对传感器响应的影响分别进行测量，然后合并为一个表达式用于评估原位时间常数。对氧传感器中压力引起的滞后的物理原理进行了讨论，并对世界海洋多个地点的许多单个传感器进行了建模。这项工作减少了……
Abstract Accurately measuring the dissolved oxygen concentration in the ocean has been the subject of considerable research. Traditionally, the calibration and correction of profiling oxygen measurements has centered on static, steady-state errors, leaving dynamic or time-dependent errors in the sensor response largely untreated. This study evaluates a reengineered Sea-Bird Electronics dissolved-oxygen Clark electrode (SBE 43) and demonstrates the characterization of sensor time response over oceanographic temperatures and pressures as well as treating a time-dependent, pressure-induced effect observed as hysteresis, most notably in deep-ocean oxygen profiles. The effects of temperature and pressure on sensor response are measured separately and then combined into an expression for evaluating an in situ time constant. The physics of the pressure-induced hysteresis in oxygen sensors are discussed and modeled for many individual sensors in several locations throughout the world’s oceans. This effort reduces...