Classification performance of carbon black-polymer composite vapor detector arrays as a function of array size and detector composition

Michael C. Burl; Brian C. Sisk; Thomas P. Vaid; Nathan Saul Lewis

doi:10.1117/12.479125

13 August 2002 Classification performance of carbon black-polymer composite vapor detector arrays as a function of array size and detector composition

Michael C. Burl, Brian C. Sisk, Thomas P. Vaid, Nathan Saul Lewis

Author Affiliations +

Proceedings Volume 4742, Detection and Remediation Technologies for Mines and Minelike Targets VII; (2002) https://doi.org/10.1117/12.479125
Event: AeroSense 2002, 2002, Orlando, FL, United States

Abstract

The vapor classification performance of arrays of conducting polymer composite vapor detectors has been evaluated as a function of the number and type of detectors in an array. Quantitative performance comparisons were facilitated by challenging a collection of detector arrays with vapor discrimination tasks that were sufficiently difficult that at least some of the arrays did not exhibit perfect classification ability for all of the tasks of interest. For nearly all of the discrimination tasks investigated in this work, classification performance either increased or did not significantly decrease as the number of chemically different detectors in the array increased. Any given subset of the full array of detectors, selected because it yielded the best classification performance at a given array size for one particular task, was invariably outperformed by a different subset of detectors, and by the entire array, when used in at least one other vapor discrimination task. Arrays of detectors were nevertheless identified that yielded robust discrimination performance between compositionally close mixtures of 1-propanol and 2-propanol, n-hexane and n-heptane, and meta-xylene and para-xylene, attesting to the excellent analyte classification performance that can be obtained through the use of such semi-selective vapor detector arrays.

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Michael C. Burl, Brian C. Sisk, Thomas P. Vaid, and Nathan Saul Lewis "Classification performance of carbon black-polymer composite vapor detector arrays as a function of array size and detector composition", Proc. SPIE 4742, Detection and Remediation Technologies for Mines and Minelike Targets VII, (13 August 2002); https://doi.org/10.1117/12.479125

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