This paper presents the design, realization, and performance measurements of a wireless interface prototype for chemoresistive sensors. The new design aims at reducing the hardware components of the sensing node in order to have an efficient sensing mechanism in terms of time and power consumption. In our design the signal transmitted by the sensing node is directly proportional to the sensing film resistance. This means that minimum signal conditioning and no data processing at all are needed. With conventional sensing node, the processing time to produce an output signal from the measurement may have a significant impact. With our approach, this time is only needed on the sink node where higher performance processors can be used. The system is tested with a commercial variable resistance gas sensor (MOX) and proved to be suitable for various combinations of CO and NO2 gas concentrations.

Shahin, L., Bertocci, F., Fort, A., Mugnaini, M., Rocchi, S., & Vignoli, V. (2014). A new wireless interface for resistive chemical sensors. In Proceedings of the 2014 IEEE 11th International Multi-Conference on Systems, Signals and Devices (SSD 2014) (pp.1-4). IEEE Computer Society [10.1109/SSD.2014.6808844].

A new wireless interface for resistive chemical sensors

SHAHIN, LUAY;BERTOCCI, FRANCESCO;FORT, ADA;MUGNAINI, MARCO;ROCCHI, SANTINA;VIGNOLI, VALERIO
2014

Abstract

This paper presents the design, realization, and performance measurements of a wireless interface prototype for chemoresistive sensors. The new design aims at reducing the hardware components of the sensing node in order to have an efficient sensing mechanism in terms of time and power consumption. In our design the signal transmitted by the sensing node is directly proportional to the sensing film resistance. This means that minimum signal conditioning and no data processing at all are needed. With conventional sensing node, the processing time to produce an output signal from the measurement may have a significant impact. With our approach, this time is only needed on the sink node where higher performance processors can be used. The system is tested with a commercial variable resistance gas sensor (MOX) and proved to be suitable for various combinations of CO and NO2 gas concentrations.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/832042
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo