光诱渔业中光强分布的理论研究及其应用

集鱼灯合理配置是光诱渔业中重要的研究课题之一,需要从理论和实践两个方面加以分析和研究,以探讨灯光配置包括种类、布局等是否合理。根据光学理论和集鱼灯的发光特点,使用面光源积分计算方法建立了集鱼灯光强计算的公式,该方法比以往的线光源以及点光源计算方法更为精确。通过理论数据和实测数据相比较,检验了方法的正确性,并且分析了产生理论数据和实测数据一定误差的原因。以此为依据,通过M athem atica4软件计算了8154鱿钓船在海面上的光强分布,研究了8154鱿钓船合适间距的问题,认为在适宜照度0.005 lx下的合适作业间距为0.64 nm.。

Theoretical research and application of illumination distribution in light attracting squid fisheries

Reasonable configuration of attracting fishing lamp is one of important issues in light fishery,and it needs to be analyzed and researched by theorization and practice to figure out the reasonableness of light configuration including varieties and distribution.In this paper,based on optics theory and characteristic of fishing lamp,a luminous intensity formula was established by regarding the lamp as area light source and using method of integral,this method is more precise than regarding the lamp as linear light source or spot light source.The validity of this method was verified by comparing true value and computed value,and the reason of bringing error between true value and computed value was also analyzed.According to this theory,illumination distribution of Type 8154 squid jigging ships on sea level was computed by using Mathematica4,and also the reasonable distance between Type 8154 squid jigging ships was studied.When illumination is 0.005 lx,the reasonable distance is 0.64 nm.