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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
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.
0925-4005
518-525
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
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, 518-525.

Record type: Article

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

Catalogue record

Date deposited: 30 Nov 1999
Last modified: 16 Jul 2019 23:08

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