Differential Eddy Current Sensor Probe Development for Solder Joint Inspection of Photovoltaic Modules

Research output: Conference proceeding/Chapter in Book/Report/Conference Paperpeer-review

Abstract

This paper deals with the development of a differential eddy-current sensor probe working at various frequencies and used for analyzing the quality of solder joints of photovoltaic (PV) modules or cells. Due to environmental impacts, stress through thermal cycles and variable load conditions, solder joints of the cell connectors inside the PV module suffer and degrade or even in worst case completely fail. With the presented approach, the conductivity of each solder joint can be individually analyzed, enabling the possibility of early failure detection, in-line or even in the field. The measurement results prove that the evaluated condition correlate to the conductivity decrease of solder joints, which can be confirmed by electroluminescence (EL) images of a solar cell. This work bases on a previously executed investigation and depicts the next step in the further development of eddy-current testing within PV applications.
Original languageEnglish
Title of host publicationSEIA’ 2021 Conference Proceedings
Subtitle of host publicationSensors and Electronic Instrumentation Advances
Pages130 - 131
Number of pages2
Publication statusPublished - 24 Sep 2021
Event7th International Conference on Sensors and Electronic Instrumentation Advances - Palma de Mallorca, Mallorca, Spain
Duration: 21 Sep 202124 Sep 2021
https://www.seia-conference.com/

Conference

Conference7th International Conference on Sensors and Electronic Instrumentation Advances
Abbreviated titleSEIA
Country/TerritorySpain
CityMallorca
Period21/09/2124/09/21
Internet address

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