Design and Testing of a Wireless Portable Carbon Nanotube-Based Chemical Sensor System

Author

Calusdian, James ; Yun, Xiaoping ; Li, Jing ; Lu, Yijiang ; Meyyappan, Meyya

Author_Institution

Department of Electrical and Computer Engineering, Naval Postgraduate School, Monterey, CA 93943, USA

Volume

2

fYear

2006

fDate

17-20 June 2006

Firstpage

794

Lastpage

797

Abstract

The design and preliminary testing results of a wireless portable carbon nanotube-based chemical sensor system are presented in this paper. The overall sensor system consists of a chemical sensor module, a microcontroller-based data acquisition module, a multiplexer and constant current source module, and a wireless communication module. The chemical sensor module is based on use of an interdigited electrode (IDE) configuration. A layer of single-walled carbon nanotubes (SWNTs) is laid on the IDE electrodes. Chemical sensing is based on detection of changes in the conductivity of the SWNT network. The system has 32 channels of chemical sensing elements. It is self-contained and portable, and wirelessly transmits measurement data to a PC via an 802.11b wireless LAN. Preliminary results on chemical detection and chemical selectivity are described.

Keywords

Chemical sensor; carbon nanotube; wireless; Carbon nanotubes; Chemical elements; Chemical sensors; Data acquisition; Electrodes; Multiplexing; Sensor systems; System testing; Wireless communication; Wireless sensor networks; Chemical sensor; carbon nanotube; wireless;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2006. IEEE-NANO 2006. Sixth IEEE Conference on

Print_ISBN

1-4244-0077-5

Type

conf

DOI

10.1109/NANO.2006.247778

Filename

1717228