Trace Detection of Nerve Agent Simulant in the Fuel Vapour Environment using Metal Oxide Surface Acoustic Wave E Nose

  • Jitender Kumar DRDO-Solid State Physics Laboratory, Delhi - 110 054 https://orcid.org/0000-0002-7570-0955
  • Harpreet Singh DRDO-Solid State Physics Laboratory, Delhi -110 054 https://orcid.org/0000-0001-6454-5614
  • V. Bhasker Raj Physics Department, Acharya Narendra Dev College, University of Delhi, Delhi -110 019
  • A. T. Nimal DRDO-Solid State Physics Laboratory, Delhi -110 054 https://orcid.org/0000-0003-3318-470X
  • Vinay Gupta Department of Physics and Astrophysics, University of Delhi, Delhi - 110 007
  • Vinay Kumar Singh Department of Chemistry, Sri Aurobindo College, University of Delhi, Delhi - 110 017
Keywords: E-nose, Metal oxide, Sensor

Abstract

Nerve agents are often used at the military warfront, where diesel is a very common interferant. In the present work, a group of surface acoustic wave (SAW) sensors, called E-Nose with dissimilar sensing layers is developed for the recognition of the mixture of diesel and dimethyl methylphosphonate (DMMP) vapors. The exposure of DMMP and diesel vapors is kept at ppb and ppm levels respectively. Varied response patterns of DMMP and diesel vapors were obtained by SAW E-nose. Principal component analysis (PCA) has been used to extract features from the response curves of SAW sensors. Artificial Neural Network pattern recognition has been implemented to identify the precise detection of DMMP vapors in the binary mixture of DMMP and diesel. The effect of pre-processing (using PCA) the raw data before feeding it to artificial neural network is also studied.

Published
2020-10-08
How to Cite
Kumar, J., Singh, H., Raj, V., Nimal, A., Gupta, V., & Singh, V. (2020). Trace Detection of Nerve Agent Simulant in the Fuel Vapour Environment using Metal Oxide Surface Acoustic Wave E Nose. Defence Science Journal, 70(5), 520-528. https://doi.org/10.14429/dsj.70.14584
Section
Electronics & Communication Systems

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