Surface Acoustic Wave Detection of Organophosphorus Compounds

Abstract

Surface Acoustic Wave (SAW) devices are potentially useful as small, sensitive chemical vapor sensors. The operating principles of these devices have been described in detail. Their use in detecting dimethyl methylphosphonate vapor has been reported previously. The basic operating principle for the SAW devices is the reversible adsorption of chemical vapors by adsorbent coatings that are sensitive and selective to the vapors that one is trying to detect. That is, SAW devices act as mass sensitive detectors. The SAW device used in this study consists of an array of four coated sensor elements with each coating giving a characteristic response to each of the vapors to be detected. Surface acoustic wave, Microsensors, Simulants, Detection.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1988
Accession Number
ADA202909

Entities

People

  • Dennis M. Davis
  • John A. Parsons
  • Raymond E. Miller

Organizations

  • Edgewood Chemical Biological Center

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Classification
  • Delay Lines
  • Detectors
  • Ethyl Cellulose
  • Flow Rate
  • Frequency
  • Frequency Shift
  • Materials
  • Methylphosphonates
  • Molecular Weight
  • Molecules
  • Organophosphorus Compounds
  • Rayleigh Waves
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Waves

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Sensor Fusion and Tracking Systems.
  • Surface Coatings Technology.