老化开裂 meaning in English
season cracking
Examples
- Several materials with large coefficient of expansion were selected to make packaging components , and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers . experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed . have selected several materials which has bigger coefficient of expansion to do packaging components , have made many temperature experiments , there have not flaws , such as aging , crackle , absciss layer , packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components , have performed a serials of experiments about accuracy and repetition of fbg wave - length , have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment , have summarized the best packaging effect and several rules to reduce mistskes
本文所做的主要工作包括以下几个内容：一、选取了常见的热膨胀系数大的材料制作封装元件，经过多次一80到80反复测试，封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷，封装材料具有良好的温敏稳定性及复用性，与光纤相容性较好；二、对光纤光栅进行简单、实用的封装处理，就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验，得出了初步的结论；三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比，从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析，在大量实验数据分析结果的基础上，总结出哪种材料封装效果更好，以及如何有效的减小实验误差。