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Compressed sensing current mapping of PV devices using a DLP projector

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conference contribution
posted on 21.07.2016, 13:03 authored by George Koutsourakis, Martin BlissMartin Bliss, Simon R.G. Hall, Tom BettsTom Betts, Ralph Gottschalg
A commercial Digital Light Processing (DLP) projector has been utilised for compressed sensing current mapping of photovoltaic (PV) devices. Through the projector, the necessary patterns are projected to apply compressive sampling for measurement acquisition. The reconstruction of the current map is achieved by an optimisation algorithm. The main advantage of this method is that measurement time is significantly reduced, compared to conventional LBIC measurement systems. This is achieved mainly by acquiring fewer measurements than a raster scan would need. Initial current maps of cells and modules have been acquired, showing the feasibility of the method. The issues of such a system have been investigated and its potential for fast and simple current mapping of PV modules is demonstrated.


This work was funded through the European Metrology Research Programme (EMRP) Project ENG55 PhotoClass, which is jointly funded by the EMRP participating countries within EURAMET and the European Union.



  • Mechanical, Electrical and Manufacturing Engineering

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12th Photovoltaic Science, Application and Technology Conference


KOUTSOURAKIS, G. ... et al, 2016. Compressed sensing current mapping of PV devices using a DLP projector. Presented at: The 12th Photovoltaic Science, Application and Technology Conference, 6th-8th April 2016, Liverpool University.


The Solar Energy Society (UK-ISES)


AM (Accepted Manuscript)

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This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

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