Polymeric resistive bridge gas sensor array driven by a standard CMOS current drive chip
Polymeric resistive bridge gas sensor array driven by a standard CMOS current drive chip
Gas sensitive micro-bridge devices, fabricated with four conducting polymer resistive elements, have been characterised using a standard cell CMOS current drive chip and precision linear analogue circuitry. Poly(anilene)(PAN) types of polymers were used to create the four resistive elements, while two opposite arms of the micro-bridge were passivated by a protective coating of either epoxy resin or nafion. The nafion coated bridges exhibited a substantially reduced sensitivity to ambient humidity and, rather surprisingly, a positive temperature coefficient.
518-525
Cole, M
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Gardner, J W
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Lim, A W Y
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Scivier, P K
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Brignell, J E
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1999
Cole, M
a1b92499-efc0-4b0b-ac4a-0020c69ed3c2
Gardner, J W
8787bc3d-74b7-480c-9dc9-2ef68a20dc6e
Lim, A W Y
f3d0f3d8-8fa9-46b6-b3de-b7af7e11f149
Scivier, P K
9ec4a09e-2381-4203-b905-c3dff84c7a60
Brignell, J E
f41cd409-f216-42d9-8b54-7392fea5bc33
Cole, M, Gardner, J W, Lim, A W Y, Scivier, P K and Brignell, J E
(1999)
Polymeric resistive bridge gas sensor array driven by a standard CMOS current drive chip.
Sensors and Actuators B: Chemical, B58, .
Abstract
Gas sensitive micro-bridge devices, fabricated with four conducting polymer resistive elements, have been characterised using a standard cell CMOS current drive chip and precision linear analogue circuitry. Poly(anilene)(PAN) types of polymers were used to create the four resistive elements, while two opposite arms of the micro-bridge were passivated by a protective coating of either epoxy resin or nafion. The nafion coated bridges exhibited a substantially reduced sensitivity to ambient humidity and, rather surprisingly, a positive temperature coefficient.
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Published date: 1999
Organisations:
Electronics & Computer Science
Identifiers
Local EPrints ID: 252025
URI: http://eprints.soton.ac.uk/id/eprint/252025
ISSN: 0925-4005
PURE UUID: 65f3eae3-fa8e-4632-be19-6ba16c9d6408
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Date deposited: 30 Nov 1999
Last modified: 07 Jan 2022 21:08
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Contributors
Author:
M Cole
Author:
J W Gardner
Author:
A W Y Lim
Author:
P K Scivier
Author:
J E Brignell
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