A Voltammetry Potentiostat Design for Large Dynamic Range Current Measurement

In this paper, we design a voltammetry potentiostat for the signal processing of electrochemical biosensors. By means of a current range detector and multi-ratio current mirrors, the measured currents of biosensors can be scaled to a proper magnitude of currents. So, the proposed potentiostat can be...

Full description

Saved in:
Bibliographic Details
Published in2011 International Conference on Intelligent Computation and Bio-Medical Instrumentation pp. 260 - 263
Main Authors Yi-Fan Liang, Chun-Yueh Huang, Bin-Da Liu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2011
Subjects
Biosensors
Current measurement
current mirror
Detectors
Electric potential
electrochemical sensor
Electrodes
Frequency conversion
Mirrors
potentiostat
Online AccessGet full text
ISBN9781457711527
1457711524
DOI10.1109/ICBMI.2011.44

Cover

More Information
Summary:In this paper, we design a voltammetry potentiostat for the signal processing of electrochemical biosensors. By means of a current range detector and multi-ratio current mirrors, the measured currents of biosensors can be scaled to a proper magnitude of currents. So, the proposed potentiostat can be applied in the biosensors with large dynamic range current variation. The measured biosensor current is converted to a frequency-modulated pulse waveform, whose frequency is proportional to the magnitude of the biosensor current. The simulation results show that the detectable range of the biosensor's current is from 10 nA to 1 mA.
ISBN:9781457711527
1457711524
DOI:10.1109/ICBMI.2011.44