摘要
油膜厚度是对海面溢油污染定量分析的一个重要指标。结合海面溢油平坦和非平坦两种厚油膜区域的形态特点,依据激光诱导荧光(LIF)技术探测不同厚度油膜的信号特征给出判定,提出平坦厚油膜区域边缘厚度评估方法,根据油膜区域边缘厚度的不同,采用荧光强度估算油膜厚度。实验观察平坦厚油膜边缘的厚度变化,利用LIF实验系统对平坦厚油膜的边缘厚度进行评估,结果表明,该方法对于厚度大于20μm的油膜厚度评估,相对偏差在±10%左右。
Oil film thickness is an important index for quantitative analysis of sea surface oil spill pollution.Based on the morphological characteristics of the even and uneven thick oil film areas in the sea surface oil spill,the determination method was given based on the signal characteristics of laser-induced fluorescence(LIF)detecting oil film with different thickness,and the thickness evaluation method of the edge of even thick oil film area was proposed.The oil film thickness was estimated according to the fluorescence intensity corresponding to the thickness of the oil film area edge.The thickness change of the even thick oil film edge was observed,and the thickness of the even thick oil film was evaluated by LIF experimental system.The results show that the relative deviation of this method is about±10%for the oil film thickness greater than 20μm.
作者
谢贝贝
孔令富
孔德明
张晓丹
孔德瀚
袁丽
XIE Bei-bei;KONG Ling-fu;KONG De-ming;ZHANG Xiao-dan;KONG De-han;YUAN Li(School of Information Science and Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China;School of Electrical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China;Information Engineering Department,Hebei University of Environmental Engineering,Qinhuangdao,Hebei 066102,China)
出处
《计量学报》
CSCD
北大核心
2021年第5期564-569,共6页
Acta Metrologica Sinica
基金
国家科技重大专项(2017ZX05019001-011)。
关键词
计量学
油膜厚度
溢油评估
激光诱导荧光
荧光强度
metrology
oil film thickness
oil spill assessment
laser-induced fluorescence
fluorescence intensity
