Hunan University

Ruizhen Yang

Yunze He

Xiaofei Zhang

Hongjin Wang

Pan Wang

Zihao Sui

A non-destructive testing system for photovoltaic cells includes a non-contact electromagnetic induction device, a short-wave infrared (SWIR) camera or/and a visible-light camera, a thermal imaging device, and an image processing device. The non-contact electromagnetic induction device is configured for generating an external electric field acting on the photovoltaic cell without being in contact with the photovoltaic cell. A direction of the external electric field is parallel to that of an internal electric field of the photovoltaic cell. The SWIR camera or/and the visible-light camera is/are configured for obtaining an optical radiation distribution map within the photovoltaic cell. The thermal imaging device is configured for obtaining a thermal radiation distribution map in the photovoltaic cell. The image processing device is configured for storing and processing the optical and thermal radiation distribution maps. Non-destructive testing equipment including the above system is further provided.

Growing community of inventors

Changsha, China

Ruizhen Yang