Izvorni znanstveni članak
https://doi.org/10.5599/jese.2013.0033
A multichannel frequency response analyser for impedance spectroscopy on power sources
Quentin Meyer
; Electrochemical Innovation Laboratory, Centre for CO2 Technology, Department of Chemical Engineering, University College London, UK
Simon Barass
; Electrochemical Innovation Laboratory, Centre for CO2 Technology, Department of Chemical Engineering, University College London, UK
Oliver Curnick
; Intelligent Energy Ltd, Loughborough, Leicestershire, UK
Tobias Reisch
; Intelligent Energy Ltd, Loughborough, Leicestershire, UK
Daniel J. Brett
; Electrochemical Innovation Laboratory, Centre for CO2 Technology, Department of Chemical Engineering, University College London, UK
Sažetak
A low-cost multi-channel frequency response analyser (FRA) has been developed based on a DAQ (data acquisition)/LabVIEW interface. The system has been tested for electric and electrochemical impedance measurements. This novel association of hardware and software demonstrated performance comparable to a commercial potentiostat / FRA for passive electric circuits. The software has multichannel capabilities with minimal phase shift for 5 channels when operated below 3 kHz. When applied in active (galvanostatic) mode in conjunction with a commercial electronic load (by discharging a lead acid battery at 1.5 A) the performance was fit for purpose, providing electrochemical information to characterize the performance of the power source.
Ključne riječi
LabVIEW; multi-channel impedance; electrical circuit; fuel cell; lead acid battery
Hrčak ID:
110236
URI
Datum izdavanja:
1.6.2013.
Posjeta: 2.611 *