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| The Calibration Methods of CTD in Laboratory |
| HU Bo1,2 |
1. National Center of Ocean Standars and Metrology, Tianjin 300112, China
2. Nankai University, Tianjin 300071, China |
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Abstract 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.
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2011, Vol. 32 
