Industrial applications-Quantum precision detection Industry shortage: Photovoltaic equipment can convert the inexhaustible solar energy into electricity, in improving the energy structure. It is of great significance to protect the ecological environment, tackle climate change and realize sustainable development. Advances in photovoltaic technology rely heavily on new technologies for characterizing the properties of photovoltaic materials and devices open up. There are many factors affecting the efficiency of photovoltaic equipment, such as defects in modules and modules, carrier composite sites and shunt resistance. Therefore, analyzin' and measuring various defects is helpful to improve the photovoltaic energy conversion efficiency and improve the device performance. Among the many means of assessing device characteristics and analyzing the causes of inefficiency, analyzing the spatial distribution of current inside the device is an intuitive and efficient evaluation method. Empowered value: Based on quantum precision measurement technology can achieve high sensitivity current imaging without contact, which can be used. In the failure analysis of photovoltaic equipment. This method combines sub-micron resolution and millimeter scale imaging field of view, while allowing optical excitation of photovoltaic modules to be measured, which is expected to provide an efficient analytical tool for improving the performance and stability of photovoltaic devices.