Outdoor photoluminescence imaging of photovoltaic modules

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United States of America

PATENT NO 12255582
APP PUB NO 20230238919A1
SERIAL NO

18009893

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Abstract

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Methods and apparatus are presented for measuring a photoluminescence (PL) response, preferably a spatially resolved image of a PL response, from an object exposed to solar irradiation. In certain embodiments signals from the object are measured in two or more different spectral bands selected such that one of the measured signals has a higher PL component relative to ambient reflectance compared to another measured signal, enabling the PL component to be enhanced by a suitable differencing procedure. In other embodiments a signal from an object is measured in a spectral band selected such that at least 20% of the measured signal comprises PL generated from the object by the solar irradiation. The methods and apparatus have particular application to outdoor inspection of photovoltaic modules without having to modulate the operating point of the modules.

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Patent Owner(s)

  • NEWSOUTH INNOVATIONS PTY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kunz, Oliver Sydney, AU 10 358
Paduthol, Appu Rshikesan Sydney, AU 1 0
Rey, Germaine Antoine Sydney, AU 1 0
Trupke, Thorsten Sydney, AU 27 262

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