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Sensors 2013, 13(6), 7827-7837; doi:10.3390/s130607827
Article

A Wireless Monitoring Sub-nA Resolution Test Platform for Nanostructure Sensors

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Sensor System Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
* Author to whom correspondence should be addressed.
Received: 9 May 2013 / Revised: 9 June 2013 / Accepted: 13 June 2013 / Published: 19 June 2013
(This article belongs to the Special Issue Nanotube and Nanowire Sensors)
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Abstract

We have constructed a wireless monitoring test platform with a sub-nA resolution signal amplification/processing circuit (SAPC) and a wireless communication network to test the real-time remote monitoring of the signals from carbon nanotube (CNT) sensors. The operation characteristics of the CNT sensors can also be measured by the ISD-VSD curve with the SAPC. The SAPC signals are transmitted to a personal computer by Bluetooth communication and the signals from the computer are transmitted to smart phones by Wi-Fi communication, in such a way that the signals from the sensors can be remotely monitored through a web browser. Successful remote monitoring of signals from a CNT sensor was achieved with the wireless monitoring test platform for detection of 0.15% methanol vapor with 0.5 nA resolution and 7 Hz sampling rate.
Keywords: test platform; signal amplification and processing circuits; nanostructure sensors; carbon nanotube; remote monitoring test platform; signal amplification and processing circuits; nanostructure sensors; carbon nanotube; remote monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Jang, C.W.; Byun, Y.T.; Lee, T.; Woo, D.H.; Lee, S.; Jhon, Y.M. A Wireless Monitoring Sub-nA Resolution Test Platform for Nanostructure Sensors. Sensors 2013, 13, 7827-7837.

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