Progress in use of carbon-black-polymer composite vapor detector arrays for land mine detection

Shawn M. Briglin; Michael C. Burl; Michael S. Freund; Nathan Saul Lewis; Adam J. Matzger; D. Nelson Ortiz; Phil Tokumaru

doi:10.1117/12.396281

22 August 2000 Progress in use of carbon-black-polymer composite vapor detector arrays for land mine detection

Shawn M. Briglin, Michael C. Burl, Michael S. Freund, Nathan Saul Lewis, Adam J. Matzger, D. Nelson Ortiz, Phil Tokumaru

Author Affiliations +

Proceedings Volume 4038, Detection and Remediation Technologies for Mines and Minelike Targets V; (2000) https://doi.org/10.1117/12.396281
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

Thin films of carbon black-organic polymer composites have been deposited across two metallic leads, with swelling- induced resistance changes of the films signaling the presence of vapors. To identify and classify vapors, arrays of such vapor sensing elements have been constructed. Each element contained a different organic polymer as the insulating phase. The differing gas-solid partition coefficients for the various polymers of the detector array produced a pattern of resistance changes that was used to classify vapors and vapor mixtures. The performance of this system towards DNT, the predominant signature in the vapor phase above land miens, has been evaluated in detail, with robust detection demonstrated in the laboratory in less than 5 s in air at DNT levels in the low ppb range.

Citation Download Citation

Shawn M. Briglin, Michael C. Burl, Michael S. Freund, Nathan Saul Lewis, Adam J. Matzger, D. Nelson Ortiz, and Phil Tokumaru "Progress in use of carbon-black-polymer composite vapor detector arrays for land mine detection", Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, (22 August 2000); https://doi.org/10.1117/12.396281

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