By Topic

Behaviour of a catalytic combustion methane gas sensor working on pulse mode

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

7 Author(s)
Lei Xu ; State Key Lab. of Transducer Technol., Chinese Acad. of Sci., Shanghai, China ; Tie Li ; Xiuli Gao ; Yuelin Wang
more authors

A catalytic combustion type methane gas sensor with Pd-Pt/ γ-Al2O3 catalyst working on pulse voltage mode is investigated in this paper, after fabricated by micromachining and sol-gel process on a silicon substrate. In order to achieve low power consumption as well as high sensitivity, pulse voltage was applied to a bridge circuit consisted of the sensor, and the ratio of the gas sensitivity to power consumption was considered as an optimizing factor when selecting high level voltage. Outputs from four low level voltages indicate that the response time of the sensor decreases with the increasing low level voltage, while the sensitivity is almost 1.8 times of the value working on constant voltage in some cases, which path a way to improve the performance of the sensor.

Published in:

Sensors, 2010 IEEE

Date of Conference:

1-4 Nov. 2010