About How to use the photovoltaic panel imager
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About How to use the photovoltaic panel imager video introduction
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6 FAQs about [How to use the photovoltaic panel imager]
Do solar panels need a thermal imaging camera?
With active troubleshooting and proper maintenance, solar panels can produce electricity for many years and a thermal imaging camera provides a great way of checking solar panels quickly. However, it is important to identify appropriate conditions before an inspection so that there is sufficient thermal contrast to locate faults.
Can a thermal imaging camera detect solar panel faults?
Low resolution thermal imaging cameras will be unable to pick up the small thermal details that indicate solar panel faults in long distance measurements using a telephoto lens. In most cases installed photovoltaic modules can also be inspected with a thermal imaging camera from the rear of a module.
How does a photovoltaic camera function?
A photovoltaic camera, used for inspecting solar panels, functions by containing a microbolometer detector that produces thermal images with a resolution of 640x480 pixels and at a thermal sensitivity of 35mK (0.035 deg C). This allows the detection of overheating cells, which impede the performance of the entire photovoltaic system. The ergonomic design enables the thermographer to look at objects from all possible angles.
What does a thermal image of a solar panel show?
A thermal image of a solar panel, such as the one shown here, reveals defective cells within the panel. Overheating cells can hinder the entire photovoltaic system's performance. The used camera includes a microbolometer detector that generates thermal images with a resolution of 640x480 pixels and a thermal sensitivity of 35mK (0.035 deg C).
Why do photovoltaic modules show a cold area on a thermal image?
Photovoltaic modules are generally mounted on highly reflective aluminum framework, which shows up as a cold area on the thermal image, because it reflects the thermal radiation emitted by the sky. In practice that means that the thermal imaging camera will display the framework temperature as being well below 0 °C.
Which thermal imaging camera is best for solar panel inspections?
A thermal imaging camera that has DDE is therefore well suited for fast and accurate solar panel inspections. Even though glass has an emissivity of 0.85 – 0.90 in the 8 – 14 μm waveband, thermal measurements on glass surfaces are not easy to do.