Transient and steady-state responses of thick-film oxygen sensors
Transient and steady-state responses of thick-film oxygen sensors
Disposable transcutaneous oxygen sensors have been designed and implemented employing screen-printing technology. The device is based on the working principle of amperometry and implemented with electrodes, electrolyte and an overlying membrane. A three-electrode configuration has been adopted with gold working and counter electrodes as well as a silver/silver chloride reference electrode. This paper focuses on the transient and steady state responses of the sensors obtained from a one-dimensional theoretical diffusion model, the results of which were compared to the experimental measurements. The surface contour and thickness of each layer was determined by analyzing the sensor using optical methods. The investigations have validated the effectiveness of using the theoretical model to perform preliminary response analysis. Furthermore, this method proves to be advantageous for the study of materials by reducing the development time and cost for future sensor designs.
thick film, oxygen sensor, amperometry, diffusion model, transient, steady state
355-361
Lam, Y.Z.
7d07652b-8c3f-4aae-a420-233cc1548dc0
Atkinson, J.K.
5e9729b2-0e1f-400d-a889-c74f6390ea58
2003
Lam, Y.Z.
7d07652b-8c3f-4aae-a420-233cc1548dc0
Atkinson, J.K.
5e9729b2-0e1f-400d-a889-c74f6390ea58
Abstract
Disposable transcutaneous oxygen sensors have been designed and implemented employing screen-printing technology. The device is based on the working principle of amperometry and implemented with electrodes, electrolyte and an overlying membrane. A three-electrode configuration has been adopted with gold working and counter electrodes as well as a silver/silver chloride reference electrode. This paper focuses on the transient and steady state responses of the sensors obtained from a one-dimensional theoretical diffusion model, the results of which were compared to the experimental measurements. The surface contour and thickness of each layer was determined by analyzing the sensor using optical methods. The investigations have validated the effectiveness of using the theoretical model to perform preliminary response analysis. Furthermore, this method proves to be advantageous for the study of materials by reducing the development time and cost for future sensor designs.
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Published date: 2003
Keywords:
thick film, oxygen sensor, amperometry, diffusion model, transient, steady state
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Local EPrints ID: 22523
URI: http://eprints.soton.ac.uk/id/eprint/22523
PURE UUID: 0d1ca404-8c61-4450-b284-e0bffe0b22b3
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Date deposited: 30 Oct 2006
Last modified: 16 Mar 2024 02:32
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Author:
Y.Z. Lam
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