THE INFLUENCE OF DETERMINATE COMPONENT ADSORPTION ON THE TIME OF TRANSITION PROCESSES IN THE AMPEROMETRIC GAS SENSORS.

Autor: Linyucheva, O. V., Buket, O. I., Kushmyiruk, A. I.
Předmět:
Zdroj: Naukovi visti NTUU - KPI; 2009, Vol. 2009 Issue 3, p131-137, 7p
Abstrakt: The chemical sensors are the important elements of present-day resource-saving technologies and complex arrangements of the environment presservation. Among them the most useful are the amperometric gas sensors. They are inexpensive and have current signal registration as well as resistance against poisoning and overcharge. One of the directions of their further enhancement is the reduction of the reliable signal stabilization time that depends on the time of transition processes in the electrochemical sensor system. The transition mass transfer for determinate component between constructional material of sensor diffusive resistance and gas phase on the path to indicating electrode is an important component of these processes. This paper shows that the significant reduction of time of transition processes can be reached by producing the sensor diffusive resistance from titanium or Teflon, or by ozonizing the constructional elements of diffusive resistance before installing them into the sensor body. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index