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文中介绍了用微波辐射计测量油膜厚度的实验,并用三层介质的数学模式研究了在不同工作频率、极化方武、入射角、油膜介电常数时,微波亮温度与油膜厚度的关系。结果表明:(1)实验与理论计算值一致。(2)提出目前条件下的最佳工作方式。(3)监测海面油膜厚度范围为0.1~1.4毫米。(4)文中的油膜厚度与亮温度的相关关系可作为机载遥感海面油膜厚度的依据。文中还探讨含有泥沙、含有35%盐水水面油膜辐射特性,并简要地讨论了海面粗糙度的影响。
In this paper, the experiment of measuring the thickness of oil film by using microwave radiometer is introduced. The relationship between the temperature of light film and the thickness of oil film at different working frequency, polarization angle, incident angle and dielectric constant of oil film are studied by the mathematical model of three layers of media. The results show that: (1) The experimental and theoretical calculations are consistent. (2) Put forward the best working methods under the current conditions. (3) Monitoring sea surface oil film thickness range of 0.1 ~ 1.4 mm. (4) The relationship between oil film thickness and bright temperature can be used as the basis for airborne remote sensing sea surface film thickness. The paper also discusses the radiation characteristics of the oil film containing silt and containing 35% saltwater, and briefly discusses the effect of sea surface roughness.