多参数拖曳荧光计系统现场实验研究

本文描述了多参数拖曳荧光计系统在船模水池和海上进行拖体水动力特性试验，得出：在１０ｋｎ以内的任意拖曳速度均能水平稳定拖曳，而纵倾角≤±２　的拖点位置；拖索张力Ｔ与拖体速度　之间的关系为Ｔ＝４７十３１．８　２．０８；拖曳速度为１０ｋｎ时，水动迫沉力约为９５０ｋｇｆ，升阻比约为２．４～２．５，满足了拖曳系统的迫沉要求。海上性能试验与应用实验表明：该拖曳系统的荧光传感器对水体、荧光示踪染料、悬浮颗粒物具有很高的分辨率；对罗丹明Ｂ水溶液的浓度检测范围为１×１０－７～１×１０－３ｍｇ／ｄｍ３；对悬浮物的浓度检测范围为２～２０００ｍｇ／ｄｍ３，使该系统广泛地用于海洋环境检测和评价工程任务中。

In Situ Experimental Study of Towed Fluorometer System with Several Parameters

A towed fluorometer system with several parameters was developed successfuly by the authors. The experiments on the hydrodynamic property of a towed body in tank/sea show: atowed body has stability within 10kn towspeed;the longiludinal incidence is less than 2 ; therelation between the towed cable tension T and towspeed is T = 47 + 31. 8 2.08; force of entry, 950kgf; at a towspeed of 10kn, lift resistance ratios, 2.4~2.5. The experiments alsoshow the fluorometer has high resolution for detecting trace and suspended partides; the detecting concentrations range being 1 10-7~1 10-3 mg/dm3 for Rhodamine B and 2~2000mg/dm3 for suspended particles. The system can be widely used in marine environment measurement and evaluation.