EL AOI Electroluminescence Solar Module Tester Solar Module Analyzer With Various EL Defect Types

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The EL tester consists of 4 near-infrared cameras (high quality 0.4mm/pixel), while the AOI appearance tester comprises another 8 visible light cameras (high quality 0.09mm/pixel). These cameras respectively capture EL infrared images and visible light images, ensuring comprehensive detection across both imaging spectra and the high-quality output in the solar production line.

By utilizing multi-station image acquisition and multi-camera image stitching, the EL tester and AOI appearance tester generate complete EL and visible images of the solar panel. This method guarantees high imaging quality and a small window feature for viewing detailed sections, which is essential for accurately identifying both EL defects and appearance defects on solar panels.

The EL tester and AOI appearance tester of PV panels can function either as independent detection systems or be integrated into a single combined detection system, offering flexibility depending on the inspection needs. This ensures precise quality control in solar panel production lines and enhances the efficiency of solar cell testing machines. The integration of the Solar Panel Tester into the solar panel production line improves defect detection accuracy and enhances the overall manufacturing process.

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About Us:

Yoha Solar is a high-tech enterprise dedicated to the research, development, manufacturing, sales, and after-sales service of serial photoelectric automation equipment.
15+ Years Engaged In Solar
300+ Customers Worldwide


Our company primarily serves the solar photovoltaic industry and holds its own import and export rights. We have developed a range of independent R&D equipment.

Main Machinery:

Fiber Laser Cutting Machine
Solar cell sorting Machine
Solar Cell IV tester
EL defect tester
EL and AOI Appearance Tester
Solar Panel Production Line
Other Auxiliary Machines

Wuhan Yoha Solar Technology Co., Ltd., located in the Wuhan East Lake High-Tech Development Zone (Optics Valley of China, Wuhan), is a high-tech enterprise dedicated to the research, development, manufacturing, sales, and after-sales service of serial photoelectric automation equipment.

15+ Years Engaged In Solar
300+ Customers Worldwide`

Our company primarily serves the solar photovoltaic industry and holds its own import and export rights. We have developed a range of independent R&D equipment, including Fiber Laser Cutting Machine, Solar cell sorting instrument, solar power tester photovoltaic IV tester, and EL Electroluminescent tester defect tester, which are exported to various countries and regions.

Established for over a decade, our company has earned unanimous praise from industry peers for its professional expertise and dedicated attitude. Our products, known for their excellent mechanical performance and cost-effectiveness, have also gained widely recognition from our customers.

Our company has a team of senior engineers with years of experience in the photovoltaic industry, providing strong technical capabilities. They can offer scientific guidance and robust technical support for the configuration, production, and planning of module encapsulation production lines.

We adhere to the business philosophy of "innovation in technology, products, and services," guided by the corporate spirit of "unity, striving, pragmatism, and innovation." We are committed to providing comprehensive solutions and excellent service to meet customer needs and work together for a better future.