目的 研究实际涂布生产中涂层厚度的在线监测方法。方法 以非牛顿流体为基础，对浸辊涂布过程进行数学推导和理论分析。结果 小型浸辊涂布的涂布头实验平台可对涂布液转移过程中形成的弯月面以及浸辊上的涂层厚度进行图像分析处理。结论 设计出了可以实时在线监控涂布设备的涂层厚度及质量的实验平台，能较好地应用在实际生产中。

The work aims to study the on-line monitoring method for the coating thickness in the actual coating. Based on the non-Newtonian fluid, the mathematical derivation and theoretical analysis of immersion coating process were carried out. The coating head experimental platform for small-scale immersion roller coatings could analyze and process the images regarding the meniscus formed in the transfer process of coating solution and the coating thickness of immersion roller. The experimental platform that can monitor the coating thickness and quality of coating equipment on-line in real time is designed and it can be well applied in the actual production.