Ortsaufgelöste Impedanzspektroskopie an einer PEM-Brennstoffzelle

Translated title of the contribution: Spatially resolved impedance spectroscopy of a PEM fuel cell

    Research output: Contribution to journalArticle

    Abstract

    Electrochemical impedance spectroscopy (EIS) and total harmonic distortion analysis (THDA) are essential measurement methods for testing and developing proton exchange membrane (PEM) fuel cells. This research work further enhances these methods. It uses a multi-channel approach for spatially resolved impedance measurement. The new developed system is capable of performing current and voltage measurement at a high sampling rate simultaneously on up to 100 channels. Subsequent digital signal processing turns it into a versatile measurement tool for EIS, THDA as well as the determination of the current density in the cross section of a PEM fuel cell.
    Original languageGerman
    Pages (from-to)328–337
    Number of pages10
    JournalTechnisches Messen
    Volume83
    Issue number6
    Publication statusPublished - Jun 2016

    Keywords

    • Fuel cell
    • impedance
    • FPGA
    • Linux
    • oversampling
    • THDA
    • spectroscopy

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