Inline EL (With Visual) ULC-EL24-3A

Electroluminescence (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field. EL relies on the same principle as a light emitting diode (LED). Current is fed into a solar cell/ solar module (essentially a large diode) and radiative recombination of carriers causes light emission. As an indirect bandgap semiconductor, most of the recombination in silicon occurs via defects or Auger recombination. The amount of band-to-band recombination producing radiative emission is relatively low. However, there is a small amount of radiative recombination that happens even in silicon and this signal can be sensed using an external detector. EL provides a wealth of data about the area related uniformity of solar cells/ solar modules. It is non destructive and relatively fast with measurement times of 1 s possible.

The EL camera uses a point-and-shoot three-camera, with the modules facing down, the short side feeding without jacking, the camera is fixed, and the modules are static for one shooting;
Perform EL and VI tests at the same station to reduce human resources efficiently;
Multiple cameras at a time automatic jigsaw restore HD original picture. Visual Inspection Function:
Image without Mosaic, the whole image real display, high resolution;
The combination of Canadian 8K color line scanning camera and high-highlight linear light source is adopted to complete the flow type one-time scanning shooting of modules, which can greatly shorten the process time and improve the utilization rate of equipment.