Publication detail

Problems with miniaturization of two-electrode system for conductivity measurements.

HUBÁLEK, J., KOLAŘÍK, V.

Original Title

Problems with miniaturization of two-electrode system for conductivity measurements.

Type

conference paper

Language

English

Original Abstract

A sensor miniaturization brings many problems e.g. an effect of the double layer capacitance, a serial resistance of electrodes, a cell constant etc. First results indicate different behaviour of the small-sized electrodes in comparison with the standard large ones. Conductivity measurements need corrections of the cell constant for each type of a liquid solution. Variation of a cell size shows possibilities to find cross relations of all factors. In summary, it is obvious that the Faraday impedance changes character, it means cut-off frequencies of the total impedance frequency characteristics are shifted under a condition variation of measurements. In addition, Wien effect can display for a small inter-electrode distance because high voltage field rises across electrodes as the inter-electrode distance decreases.

Key words in English

cell constant correction thick-film electrodes IDEs

Authors

HUBÁLEK, J., KOLAŘÍK, V.

RIV year

2000

Released

4. 9. 2000

Publisher

Ing. Zdeněk Novotný, CSc.

Location

Brno

ISBN

80-214-1780-3

Book

Electronic Devices and Systems Y2K. Proceedings.

Pages from

237

Pages to

242

Pages count

6

BibTex

@inproceedings{BUT2048,
  author="Jaromír {Hubálek} and Vladimír {Kolařík}",
  title="Problems with miniaturization of two-electrode system for conductivity measurements.",
  booktitle="Electronic Devices and Systems Y2K. Proceedings.",
  year="2000",
  pages="6",
  publisher="Ing. Zdeněk Novotný, CSc.",
  address="Brno",
  isbn="80-214-1780-3"
}