Naslov
Energy-efficient atmospheric CO concentration sensing with on-demand operating MOX gas sensor

Autori
Oletić, Dinko ; Jeličić, Vana ; Antolović, Dario ; Bilas, Vedran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
2014 IEEE Sensors Proceedings / - , 2014, 795-798

ISBN
978-1-4799-0161-6

Skup
IEEE Sensors 2014

Mjesto i datum
Valencia, Španjolska, 02.11.2014. - 05.11.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
energy-efficient; CO; MOX gas sensor

Sažetak
Collaborative mobile air-pollution monitoring, employing context aware sampling scheduling, requires on-demand sensing of gas concentration. If MOX gas sensors are used, their energy consumption can be reduced by on-demand heating, with a risk to compromise the sensing repeatability. We experimentally investigate response of MiCS-5525 CO MOX sensor to intermittent heating sequences consisting of a train of short rectangular pulses. We analyse stability of response, energy consumption and sensitivity at low concentrations, for various combinations of pulse waveform period and duty- cycle. We obtained stable readings for the heating sequences consuming 200-300 mJ, saving over 30% of energy per reading.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA