Publication detail

New Approach in Wide Range Conductivity Measurement with Planar Sensor

HUBÁLEK, J., KREJČÍ, J., KOLAŘÍK, V.

Original Title

New Approach in Wide Range Conductivity Measurement with Planar Sensor

Type

conference paper

Language

English

Original Abstract

This paper contributes to the field of precise electrolytic conductivity measurements with planar sensors. This novel measuring method was suggested for measurement with comb-like thick-film electrodes. Correction characteristics over a wide range of a specific conductivities were determined from an interface impedance characterisation of the thick-film electrodes. The cell constant strongly depends on the frequency and conductivity of solutions. A local minimum of the imaginary part of the interface impedance is used for corrections to get linear responses. In this minimum a ridge frequency and cell constant were determined for each measured conductivity. An iteration mode of measurements was suggested to exactly measure the conductivity in the ridge frequency in order to achieve a highly accurate response. An implementation of this method as a microcontroller application can used to build-up microsystems for precise conductivity measurements in concentration ranges from 10-6 to 1 M without cell replacement.

Key words in English

IDEs, electrolytic conductivity, iterative measurement

Authors

HUBÁLEK, J., KREJČÍ, J., KOLAŘÍK, V.

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

112

Pages to

115

Pages count

4

BibTex

@inproceedings{BUT4630,
  author="Jaromír {Hubálek} and Jan {Krejčí} and Vladimír {Kolařík}",
  title="New Approach in Wide Range Conductivity Measurement with Planar Sensor",
  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"
}