基于光电传感技术的海水盐度计研究.pdfVIP

20 12 2009 12 Journal of Optoelectronics Laser Vol.20 No. 12 Dec.2009 * * 基于光电传感技术的海水盐度计研究 1 2* * 3 3 陈世哲, 曹乃锋 , 赵 勇, 胡开博 ( 1. , 266001; 2. , 266003; 3. ,100084) :( PSD),, , ,,, 1.67 ,! 1.25 , 0. 038 / ∀ ! 2.58 , :; ; ; (PSD) :TP212. 1 :A :2009) Research on seawater salinometer based on photoelectric sensor technology 1 2* * 3 3 CH N Shizhe , CAO Naifeng , ZHAO Yong , HU Kaibo ( 1.Shandong Academy of Sciences Institute of Oceanographic Instrumentation, Qingdao 266001, China; 2.College of ngineering,Ocean University of China,Qingdao 266003, China; 3.Department of Automation, Tsinghua Uni versity,Beijing 100084,China) Abstract:Under the elaborate survey of recent development of the seawater salinity measurement tech nology,we systematically proposed a measurement principle, based on differential refractiveindex and PSD (Position Sensitive Device), and built a mathematical model, designed the structure of sensing probe,produced a prototype.Onthe basisof numerous experimental data,we determinedthe salinity cal ibration curve, thesystem stability and interfering factorswere also measured. xperimental results indi cate thesalinity resolutionof 1. 67 and stability error better than ! 1. 25 , errors caused by tempera ture andPerturbation are 0. 038 / ∀ and ! 2. 58 .The results also showed the feasibility of system principle and structural design.Then, errors which could affect the system performance were discussed and analyzedin detail,