便携式EL测试仪
The Mobile system utilizes the electroluminescence phenomena to image micro cracks, cell failures and inhomogenities of photovoltaic devices which are extremely difficult to detect visually. The equipment allows performing detailed quality control of single cells as well as medium scale solar modules. It was developed for research and off-line industrial inspection. The mobile version allows quick mounting and an easy transport.
The system consists of a highly sensitive CCD-Camera with objective and accessories packed in a transportable bag. The focal length of the objective is selected depending on the type of application. The provided Software is able to obtain and manipulate the electroluminescence images. It is a full plug & play system. The camera has an USB2.0 interface and can be connected to a laptop or PC easily.
Software Overview:
The software controls the camera and visualizes the data sets. Intensity profiles of the 16bit high dynamic range image data can be displayed in addition to basic picture manipulation procedures. Moreover dimension measurements of artefacts are possible following calibration.
Software Functions:
• Save, Quicksave, Load Images
• Supported File Formats: BMP, JPEG, TXT and Raw data
• Single Image Mode, Video Mode
• Automatic Background Subtraction
• False-Color-Representation of Images
• Intensity slices in x, y direction
• Linear /logarithmic Scaling
• Zoom functions / Image Viewer
• Remote Control of Power Supply
Software / Hardware Requirements:
• PC with WinXP or Windows Vista
• USB2.0 Interface
Key features of the camera (GE 1024 1024 BI MID/NIR):
• Back-illuminated scientific CCD-Sensor
• High sensitivity in the near infrared region (85% @ 750nm, 40% @ 900nm, 12% @ 1000nm)
• Large pixel size of 13μm x 13 μm
• Resolution: 1024 x 1024 Pixel
• High dynamic range of image data (16bit or 65536 grayscales)
• Hermetically sealed vacuum chamber
• Peltier cooling down to -20°C
• USB 2.0 Interface
• Additional Driver for Labview are available on request
Inspection capabilities:
• Shunt detection
• Micro cracks identification
• Cell print defects
• Solar cell rear side paste defects
• Detect Inhomogenities , Impurities
• Solar cell / Module efficiency classification
Areas of application:
• Final Inspection of solar cells
• Identification/ Replacement of defect cells before lamination
• Improvement of general production efficiency
• Research and Development
• Characterization and Qualification
Successfully tested on various solar cell / module types:
• Monocrystalline Silicon (mono-Si)
• Polycrystalline Silicon (poly-Si)
• Amorphous Silicon (a-Si)
• Copper Indium Sulfide (CIS)
• Copper Indium Gallium selenide (CIGS)
General specifications:
System components:
• USB 2.0 CCD-Camera : GE 1024 x 1024 BI
• Objective with enhanced NIR transmission
• LumiSolarMobile software
• Synchronization Module for automated image capture
• Portable case, power supply and connection cables inclusive
Power Supply:
• Standard ~230V, 50/60 Hz
Dimension, Weight:
• Size of the case: 460mm x 370mm x 170mm
• Total Weight: 12kg
Optional Accessories:
• Precision power supply (750W, 1500W or 2.4kW) for solar cells / modules on request
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