Electroluminescence and visual inspection system for PV module Manufacturer

Electroluminescence and visual inspection system for PV module

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EL & VI Tester

An EL & VI tester is an electroluminescence and visual inspection system for PV modules. The tester can detect and shoot a range of defects and automatically name and save the images. Adopting Sony camera chip and the 55-inch 4K monitor, the testing equipment is an ideal machine for increasing testing efficiency and improving testing processes for solar panel manufacturers and quality assurance departments.

Technical Parameters

Item	Parameters
Panel size	(900-1,500)*(1,650-2,650)mm
Cycle time	20s
Camera chip brand	Sony
Monitor	55-inch 4K monitor*2
System resolution	EL: spatial resolution: 0.4mm/pixel/5 points; Exterior: spatial resolution: 0.2mm/pixel/5 points
Pixel accuracy	EL: 2.3 million pixels, number of focal points: 15; Exterior: 12 million pixels, number of focal points: 15
Detectable defects	Visible cracks, broken grids, black spots, etc; Exposed white, missing corners, gaps, welding strips, dislocation as well as tin slag, paper scraps and sawdust in the battery area of over 1mm².
Shooting mode	Direct shotting, three-group scanning type (equivalent to shooting with 15 cameras)
Dimensions	3,100mm(L)2,679(W)2,128mm(H)
Voltage	220V, 50Hz
Rated power	2.5kW
Air pressure	0.5-0.8MPa compressed clean air flowing at a speed of 1.6L/min to the bore with a diameter of 12mm
Image saving and transmission	1. Automatically shooting EL images; 2. Images are automatically named and saved with barcode scanning and input. Barcode gun is provided by Party B; 3. Manual/AI defect classification, automatic date folder generation, and saving; 4. Software filtering and correction; seamless splicing; EL images are displayed line by line; the defects which cannot be identified by AI are handed over to personnel for manual identification.

Features

The overall structure is simple, stable and easy to use;

Quickly switching different specifications of panels;

The servo motor drives the precise transmission of panels;

Stable belt transmission;

Display by full screen or partial zooming in and zooming out;

Automatically taking pictures and identifying barcodes;

Extensible MES interface supporting automatic uploading;