PULSE MODE OF OPERATION OF DIODE HUMIDITY SENSORS

Authors
POPOVA LI ANDREEV SK GUEORGUIEV VK STOYANOV ND
Citation
Li. Popova et al., PULSE MODE OF OPERATION OF DIODE HUMIDITY SENSORS, Sensors and actuators. B, Chemical, 37(1-2), 1996, pp. 1-5
Citations number
8
Categorie Soggetti
Electrochemistry,"Chemistry Analytical","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
37
Issue
1-2
Year of publication
1996
Pages
1 - 5
Database
ISI
SICI code
0925-4005(1996)37:1-2<1:PMOOOD>2.0.ZU;2-F
Abstract
The combined gas-sensing properties of a thin SnO2 layer and an underl ying surface p-n junction are used for creating a solid-state humidity sensor. The dependence of the device response behaviour on pulsed-vol tage measuring conditions is investigated. A strong dependence on puls e duration and pulse/pause ratio is observed. A model for explaining t he device behaviour, based on the voltage dependence of the sorption p henomena during the pulse and pause durations, is proposed. A good agr eement with the experimental results is obtained.