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Title: Non-destructive evaluation of water ingress in photovoltaic modules

Systems and techniques for non-destructive evaluation of water ingress in photovoltaic modules include and/or are configured to illuminate a photovoltaic module comprising a photovoltaic cell and an encapsulant with at least one beam of light having a wavelength in a range from about 1400 nm to about 2700 nm; capture one or more images of the illuminated photovoltaic module, each image relating to a water content of the photovoltaic module; and determine a water content of the photovoltaic module based on the one or more images. Systems preferably include one or more of a light source, a moving mirror, a focusing lens, a beam splitter, a stationary mirror, an objective lens and an imaging module.
Inventors:
;
Issue Date:
OSTI Identifier:
1346049
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,588,058
Application Number:
14/983,076
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2015 Dec 29
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Other works cited in this record:

Photovoltaic Module Qualification Plus Testing
conference, June 2014
  • Wohlgemuth, John; Kurtz, Sarah
  • Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th, p. 3589-3594
  • DOI: 10.1109/PVSC.2014.6924883

Multiplexed gas spectroscopy using tunable VCSELs
conference, May 2012
  • Bora, Mihail; McCarrick, James; Zumstein, Jim
  • SPIE Proceedings, Vol. 8366, Article No. 836607
  • DOI: 10.1117/12.920803

Modeling of rates of moisture ingress into photovoltaic modules
journal, October 2006

Determination of moisture ingress through various encapsulants in glass/glass laminates
conference, June 2009

Applications of infrared microscopy to IC and MEMS packaging
journal, July 2003
  • Trigg, A.
  • IEEE Transactions on Electronics Packaging Manufacturing, Vol. 26, Issue 3, p. 232-238
  • DOI: 10.1109/TEPM.2003.820807

Evaluation of moisture ingress from the perimeter of photovoltaic modules
journal, May 2013
  • Kempe, Michael D.; Dameron, Arrelaine A.; Reese, Matthew O.
  • Progress in Photovoltaics: Research and Applications, Vol. 22, Issue 11, p. 1159-1171
  • DOI: 10.1002/pip.2374

Interaction of water in polymers: Poly(ethylene-co-vinyl acetate) and poly(vinyl acetate)
journal, February 2005
  • Iwamoto, Reikichi; Matsuda, Toshihiko
  • Journal of Polymer Science Part B: Polymer Physics, Vol. 43, Issue 7, p. 777-785
  • DOI: 10.1002/polb.20368

Interactions of water with OH groups in poly(ethylene-co-vinyl alcohol)
journal, September 2006
  • Iwamoto, Reikichi; Matsuda, Toshihiko; Amiya, Shigetoshi
  • Journal of Polymer Science Part B: Polymer Physics, Vol. 44, Issue 17, p. 2425-2437
  • DOI: 10.1002/polb.20894

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