This article presents the advancement of an ultrafast high-resolution cracks detection in solar cells manufacturing system. The aim of the developed process is to: first, improve the quality of the calibrated image taken by a low-cost conventional electroluminescence (EL) imaging setup; second, propose a novel methodology to enhance the speed of the detection of the solar cell cracks, and finally develop a proper procedure to decide whether to accept or reject the solar cell due to the existence of the cracks. The proposed detection process has been validated on various cracked/free-crack solar cell samples, evidently it was found that the cracks type, size, and orientation are more visible using the proposes method, while the speed of calibrating the EL images are in the range of 0.1-0.3 s, excluding the EL imaging time.

中文翻译：

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超快高分辨率太阳能电池裂纹检测过程


本文介绍了太阳能电池制造系统中超快高分辨率裂纹检测的进展。开发流程的目的是：首先，提高低成本传统电致发光（EL）成像装置拍摄的校准图像的质量；其次，提出一种新的方法来提高太阳能电池裂纹的检测速度，并最终开发出适当的程序来决定是否因裂纹的存在而接受或拒绝太阳能电池。所提出的检测过程已在各种有裂纹/无裂纹太阳能电池样品上进行了验证，显然发现使用所提出的方法，裂纹类型、尺寸和方向更加明显，而校准 EL 图像的速度在范围为 0.1-0.3 秒，不包括 EL 成像时间。