Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4580
Title: Versatile computer-controlled system for characterization of gas sensing materials
Authors: Zhao, M
Huang, JX
Wong, MH
Tang, YM
Ong, CW 
Keywords: Electric variables measurement
Gas sensors
Optical variables measurement
Issue Date: Oct-2011
Publisher: American Institute of Physics
Source: Review of scientific instruments, Oct. 2011, v. 82, no. 10, 105001, p. 1-6 How to cite?
Journal: Review of scientific instruments 
Abstract: Design of a system used for characterizing gas sensing materials is described. It is distinctive of being able to measure electrical and optical responses of a sample simultaneously, control a number of measurement parameters, perform fast exchange of gaseous environment, and be fully controlled automatically. These features make the system to be versatile in determining most concerned performance indexes of a gas sensing material (e.g., sensitivity, stability, selectivity, response/recovery times, etc.) as functions of various combinations of measurement conditions (e.g., gas concentrations, temperature, total pressure, content of interferants, photo assist, relative humidity, soaking time in a fixed gas concentration, and number of switching cycles in a dynamic test, etc.). Rationales of the designs associated with general gas sensing mechanics are discussed.
URI: http://hdl.handle.net/10397/4580
ISSN: 0034-6748
DOI: 10.1063/1.3648132
Rights: © 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in M. Zhao et al., Rev. Sci. Instrum. 82, 105001 (2011) and may be found at http://link.aip.org/link/?rsi/82/105001.
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