Sensors 2008, 8(3), 1774-1796; doi:10.3390/s8031774
Article

Development and Demonstration of Measurement-Time Efficient Methods for Impedance Spectroscopy of Electrode and Sensor Arrays

Received: 12 February 2008; Accepted: 11 March 2008 / Published: 14 March 2008
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The development of impedance-based array devices is hindered by a lack ofrobust platforms and methods upon which to evaluate and interrogate sensors. One aspectto be addressed is the development of measurement-time efficient techniques forbroadband impedance spectroscopy of large electrode arrays. The objective of this workwas to substantially increase the low frequency impedance measurement throughputcapability of a large channel count array analyzer by developing true parallel measurementmethods. The goal was achieved by Fourier transform-based analysis of simultaneouslyacquiredmulti-channel time-based current and voltage data. Efficacy and quantitativeanalysis of the parallel approach at frequencies less than ca. 10 Hz as well as a combinedsequential parallel approach for efficient broadband impedance spectroscopy over 5-orders of magnitude in frequency is demonstrated through complex impedancemeasurement of arrays consisting of up to 100 elements.
Keywords: Array; sensor; impedance spectroscopy; measurement methods
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MDPI and ACS Style

Cooper, K.R.; Smith, M.; Johnson, D. Development and Demonstration of Measurement-Time Efficient Methods for Impedance Spectroscopy of Electrode and Sensor Arrays. Sensors 2008, 8, 1774-1796.

AMA Style

Cooper KR, Smith M, Johnson D. Development and Demonstration of Measurement-Time Efficient Methods for Impedance Spectroscopy of Electrode and Sensor Arrays. Sensors. 2008; 8(3):1774-1796.

Chicago/Turabian Style

Cooper, Kevin R.; Smith, Matthew; Johnson, Derek. 2008. "Development and Demonstration of Measurement-Time Efficient Methods for Impedance Spectroscopy of Electrode and Sensor Arrays." Sensors 8, no. 3: 1774-1796.

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