摘要
介绍了目前我国海洋环境调查中常用的温盐深测量仪的类别与工作原理。分别对温度、盐度（电导率）、深度（压力）3种参量的校准过程进行了重点论述，包括校准前准备工作、校准实施过程、数据采集等。针对仪器所获得数据的不同类型，分别对能够获得原始值及不能得到原始值的2种仪器提出了2种数据处理方法，并用EXCEL软件进行了演示。对于只能取得示值的仪器直接对其数据进行回归，得到拟合曲线及校准公式。对于可给出原始N值的仪器，可通过对其厂商提供的N值与示值的转化公式进行转换，以N值为自变量，约定真值为因变量进行拟合，得到拟合曲线及校准公式，并可计算出新的修正系数。
The categories and operating principle of conductivity temperature and depth （CTD） meter commonly used in the current investigation of marine environment in China are introduced. And the calibration procedure of CTD meter is discussed, including the preparatory work before calibration, implementing calibration process, and data collection. According to the original value of the equipment be able to obtain, the CTD meters are divided into two categories and demonstrate data processing by EXCEL. Direct data regression is taken for the CTD meter which only displays indication. These data were fit with original value and real value for the other type meter. The fit curve and the calibration formula was got at last.
出处
《计量学报》
CSCD
北大核心
2011年第B12期77-81,共5页
Acta Metrologica Sinica
关键词
计量学
海洋监测
温盐深测量仪
校准
Metrology
Ocean monitor
Conductivity temperature depth system
Calibration
