DocumentCode :
3117260
Title :
Pd modified CO sensors with oscillatory response
Author :
Li, LiLin ; Wlodarski, Wojtek ; Akolekar, Deepak ; Bhagava, Suresh ; Ippolito, Samuel
Author_Institution :
Sch. of Electr. & Comput. Eng., R. Melbourne Inst. of Technol., Vic., Australia
fYear :
2004
fDate :
24-27 Oct. 2004
Firstpage :
150
Abstract :
In this paper, oscillatory changes in the conductance of Pd modified SnO2 bead and Pd modified Pt coil in the presence of CO were investigated and compared. Changes in frequency were found for both sensors with varied CO concentrations. For the Pd modified SnO2 sensor, the frequency of the waveform increased with increasing CO concentration, while for the Pd modified Pt coil, the frequency decreased. Influences of the surface temperature to CO responses were examined. The selectivity against H2 was also tested.
Keywords :
II-VI semiconductors; carbon compounds; coils; electric sensing devices; electron device testing; gas sensors; oscillations; palladium; platinum; semiconductor device testing; tin compounds; CO; CO concentration; H2 selectivity; Pd; Pd modified CO sensors; Pd modified Pt coil; Pd modified SnO2 bead; Pd modified SnO2 sensor; Pt; SnO2; conductance; oscillatory response; surface temperature; Australia; Coils; Cyclic redundancy check; Frequency; Gas detectors; Resistors; Sensor phenomena and characterization; Temperature sensors; Testing; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensors, 2004. Proceedings of IEEE
Print_ISBN :
0-7803-8692-2
Type :
conf
DOI :
10.1109/ICSENS.2004.1426122
Filename :
1426122
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3117260
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