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An FPGA-based frequency response analyzer for multisine and stepped sine measurements on stationary and time-varying impedance

Author
Sánchez, B.; Fernandez, X.; Reig, S.; Bragos, R.
Type of activity
Journal article
Journal
Measurement science and technology
Date of publication
2014-01
Volume
25
Number
1
DOI
https://doi.org/10.1088/0957-0233/25/1/015501 Open in new window
Project funding
Desarrollo de bioimplantes para la regeneración cardiaca con células progenitoras derivadas de la grasa cardiaca, biomateriales y..
Abstract
We report the development of a field programmable gate array (FPGA) based frequency response analyzer (FRA) for impedance frequency response function (FRF) measurements using periodic excitations, i.e. sine waves and multisines. The stepped sine measurement uses two dedicated hardware-built digital embedded multiplier blocks to extract the phase and quadrature components of the output signal. The multisine FRF measurements compute the fast Fourier transform (FFT) of the input/output signals. In ...
Keywords
digital detection hardware, electrical impedance spectroscopy (EIS), frequency response analyzer (FRA), frequency response function (FRF), multisine FRF measurements, stepped sine FRF measurements, time-varying impedance
Group of research
CREB - Biomedical Engineering Research Centre
IEB - Electronic and Biomedical Instrumentation

Participants