• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >In-line quality control device for the degree of crosslinking of the embedding material ethylene vinyl acetate in PV modules
【24h】

In-line quality control device for the degree of crosslinking of the embedding material ethylene vinyl acetate in PV modules

机译：在线质量控制装置，用于光伏组件中嵌入材料乙烯乙酸乙烯酯的交联度

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Raman spectroscopy is proposed as a fully versatile, industrially applicable in-line quality control method for measuring the degree of curing of elastomeric ethylene vinyl acetate (EVA). As a purely optical method, Raman spectroscopy enables a contact-free, non-destructive analysis e.g. through the front glass. The characteristic Raman spectra of differently crosslinked EVA show subtle but characteristic spectral differences in the CH-stretching vibration region (3.000 - 2.800 cm~(-1)) that correlates unambiguously and reliably to the state of encapsulant crosslinking. An external calibration against standard Soxhlet extraction is still necessary, but only once for each material type. In an initial proof-of-principle phase, various EVA samples were analysed with a Raman laboratory system, both as bare EVA foils and in assembled glass-backsheet and glass-glass modules. Subsequently, an industrial Raman demonstrator was designed, built and applied to the same samples. A detailed evaluation of the results proved good analytical quality at analysis times down to 0.1 s per point. Finally, the device was installed and successfully operated in a PV module manufacturing line. Raman spectroscopy has thus proven its capability for contact-free multi-point real-time analysis of PV modules in-line in the manufacturing line.
机译：提出拉曼光谱法是一种完全通用的，工业上可应用的在线质量控制方法，用于测量弹性体乙烯乙酸乙烯酯（EVA）的固化程度。作为一种纯粹的光学方法，拉曼光谱法可实现无接触，无损分析，例如通过前玻璃。不同交联的EVA的特征拉曼光谱在CH拉伸振动区域（3.000-2.800 cm〜（-1））中显示出细微但特征性的光谱差异，该差异与密封剂的交联状态明确且可靠地相关。仍然需要针对标准的索氏提取进行外部校准，但对于每种材料类型仅需进行一次校准。在最初的原理验证阶段，使用拉曼实验室系统分析了各种EVA样品，包括EVA裸箔以及组装的玻璃背板和玻璃-玻璃组件中的样品。随后，设计，制造了工业拉曼演示器，并将其应用于相同的样品。对结果的详细评估证明了在低至0.1 s /点的分析时间下的良好分析质量。最终，该设备在光伏组件生产线中安装并成功运行。拉曼光谱仪因此证明了其在生产线中在线进行光伏组件无接触多点实时分析的能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号