CDOM走航式测量仪的设计与应用  

Construction and Application of an Onboard Absorption Analyzer Device for CDOM

作　　者：林俊芳[1,2] 孙兆华[1] 曹文熙[1] 胡水波[1,2] 许占堂[1] 

机构地区：[1]中国科学院南海海洋研究所热带海洋环境国家重点实验室,广东广州510301 [2]中国科学院研究生院,北京100049

出　　处：《光谱学与光谱分析》2013年第4期1141-1145,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(41076014;U0933005;40906022;41176035);中国科学院南海所项目(SQ201103;SQ201102)资助

摘　　要：海水中的有色溶解有机物(CDOM)对海洋生态系统具有重要影响。针对当前CDOM测量的问题,基于Teflon AF液芯波导(LWCC/LCW)技术,设计了一套全自动CDOM走航式测量仪。该仪器具有光程可调、测量动态范围广、灵敏度高等特点,适合于各类水体。其过滤和进样系统,实现了水样的自动过滤、进样和样品池清洗。基于LabVIEW语言开发的软件控制平台,可高效地控制仪器的运行状态和数据(光谱数据、GPS数据及海水温盐数据)的采集。通过对照实验和现场海上测试,证实了测量数据的可靠性和仪器的稳定性。Colored dissolved organic matter（CDOM） plays an important role in marine ecosystems.In order to solve the current problems in measurement of CDOM absorption,an automated onboard analyzer based on liquid core waveguides（Teflon AF LWCC/LCW） was constructed.This analyzer has remarkable characteristics including adjusted optical pathlength,wide measurement range,and high sensitivity.The model of filtration and injection can implement the function of automated filtration,sample injection,and LWCC cleaning.The LabVIEW software platform can efficiently control the running state of the analyzer and acquire real time data including light absorption spectra,GPS data,and CTW data.By the comparison experiments and shipboard measurements,it was proved that the analyzer was reliable and robust.

关 键 词：CDOM 走航式 TEFLON AF液芯波导 

分 类 号：P715[天文地球—海洋科学] TP23[自动化与计算机技术—检测技术与自动化装置]