Publication detail

Interface Impedance and Cell Constant Corrections of Planar Comb-like Electrodes

HUBÁLEK, J., KREJČÍ, J.

Original Title

Interface Impedance and Cell Constant Corrections of Planar Comb-like Electrodes

Type

conference paper

Language

English

Original Abstract

Planar comb-like electrodes called also interdigitated electrodes (IDEs) are used as miniature and cheap chemical sensor for widespread use as conductivity-based transducer. The thick-film Pt planar sensor has been characterised by a precise impedance analyser over a wide range of frequencies and conductivities. The frequency characteristics have been studied to describe the electrode behaviour, and for comparison with theory. We found relations between conductivity and frequency. The ridge frequency was detected as suitable measuring frequency to improve accuracy. Extracted relations can be used as correction characteristics. The correction factor was determined for wide range of conductivity to take precise measurements without cell replacement.

Key words in English

thick-film; interdigitated electrodes; conductivity; correction factor; ridge frequency

Authors

HUBÁLEK, J., KREJČÍ, J.

RIV year

2002

Released

18. 12. 2002

Publisher

FEKT VUT v Brně

Location

Ing. Z. Novotny, Brno

ISBN

80-214-2217-3

Book

Socrates Workshop 2002 - Proceedings. Intensive Training Programme in Electronic System Design. Chania, Crete (Greece)

Pages from

107

Pages to

110

Pages count

4

BibTex

@inproceedings{BUT4629,
  author="Jaromír {Hubálek} and Jan {Krejčí}",
  title="Interface Impedance and Cell Constant Corrections of Planar Comb-like Electrodes",
  booktitle="Socrates Workshop 2002 - Proceedings. Intensive Training Programme in Electronic System Design. Chania, Crete (Greece)",
  year="2002",
  pages="4",
  publisher="FEKT VUT v Brně",
  address="Ing. Z. Novotny, Brno",
  isbn="80-214-2217-3"
}