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Effect of Electrode Geometry on Sensor Response

Jain, U; Harker, AH; Stoneham, AM; Williams, DE; (1990) Effect of Electrode Geometry on Sensor Response. Sensors and Actuators B: Chemical , 2 (2) 111 - 114. 10.1016/0925-4005(90)80019-V. Green open access

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Abstract

We have demonstrated the feasibility of using a finite-element program to study the effect of electrode geometry on the performance of an oxide gas sensor. The gas concentration is varied within the sensor. The program is general enough to be extended to complex three-dimensional geometries. For the simpler cases we consider, we find that at a given temperature the back contact sensor will be more selective for moderately reactive gases than for less or more reactive ones, which is in general agreement with the observations made on Figaro gas sensors. We also find that the performance of the sensor improves by using interlacing electrodes, as expected.

Type: Article
Title: Effect of Electrode Geometry on Sensor Response
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/0925-4005(90)80019-V
Publisher version: http://dx.doi.org/10.1016/0925-4005(90)80019-V
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/174751
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