|
| 涂层厚度检测的锁相红外方法研究 |
| Research on evaluation of coating thickness by lock-in infrared thermography |
| 投稿时间：2024-05-16 修订日期：2024-05-24 |
| DOI： |
| 中文关键词: 无损检测 红外锁相 涂层结构 厚度检测 |
| 英文关键词:Non-destructive testing Lock-in thermograph Coating structure Thickness measurement |
| 基金项目: |
|
| 摘要点击次数: 280 |
| 全文下载次数: 0 |
| 中文摘要: |
| 天线罩有机涂层厚度直接关系到雷达目标定位精度和追踪能力等功能。锁相红外无损检测技术具有非接触、大面积检测等优势,可以对涂层厚度进行检测和评估。本文通过理论分析和仿真模拟,研究了不同频率热激励下涂层厚度与相位的函数关系,分析了加载频率对厚度检测的影响。制备了环氧涂层/陶瓷基体试件,开展了不同厚度涂层的锁相红外实验研究,建立了涂层厚度标定曲线。结果表明,厚度测量平均误差在5%以内,具有较好的工程应用价值。 |
| 英文摘要: |
| The thickness of the organic coating on radome is directly related to the radar target positioning accuracy and tracking capabilities. Lock-in infrared non-destructive testing technology has the advantages of non-contact measurement and large detection area, which can be used to detect and evaluate the thickness of the coating. This paper theroretically and numerically investigated the functional relationship between the thickness of the coating and the phase under thermal excitation at different frequencies, and analyzed the influence of loading frequency on thickness detection. Epoxy-coated/ceramic substrate samples were prepared, and lock-in infrared experiments were conducted on coatings of different thickness and a calibration curve was established. The results show that the average error of thickness measurement is within 5%, which has good practical value for engineering applications. |
| 下载PDF阅读器 |
| 关闭 |
