Publication detail
Precise Conductivity Measurements with Thick-Film IDEs
HUBÁLEK, J. KREJČÍ, J.
Czech title
Precise Conductivity Measurements with Thick-Film IDEs
English title
Precise Conductivity Measurements with Thick-Film IDEs
Type
conference paper
Language
en
Original abstract
Thick-film Pt interdigitated electrodes (IDEs) are used as miniature and cheap chemical sensor for widespread use as conductivity-based transducer. The 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.
Czech abstract
Thick-film Pt interdigitated electrodes (IDEs) are used as miniature and cheap chemical sensor for widespread use as conductivity-based transducer. The 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.
English abstract
Thick-film Pt interdigitated electrodes (IDEs) are used as miniature and cheap chemical sensor for widespread use as conductivity-based transducer. The 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.
Keywords in Czech
thick-film; interdigitated electrodes; conductivity measurements; correction factor; ridge frequency
Keywords in English
thick-film; interdigitated electrodes; conductivity measurements; correction factor; ridge frequency
RIV year
2002
Released
09.09.2002
Publisher
Ing. Zdeněk Novotný, CSc., Brno, Ondráčkova 105
Location
Brno
ISBN
80-214-2180-0
Book
EDS 2002 Electronic Devices and Systems Conference
Pages count
5
BIBTEX
@inproceedings{BUT4947,
author="Jaromír {Hubálek} and Jan {Krejčí},
title="Precise Conductivity Measurements with Thick-Film IDEs",
booktitle="EDS 2002 Electronic Devices and Systems Conference",
year="2002",
month="September",
publisher="Ing. Zdeněk Novotný, CSc., Brno, Ondráčkova 105",
address="Brno",
isbn="80-214-2180-0"
}