Surface Diffusion Enhanced Chemical Sensing by Surface Acoustic Waves

Abstract

A new chemical sensing method that enhances sensitivity and selectivity is proposed and verified by theoretical analysis. This method is based on the spectral analysis of the dynamics of adsorbed molecules on surface acoustic wave (SAW) delay lines and resonators. Various sources of noise, including diffusion and adsorption-desorption noise is considered.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2003
Accession Number
ADA457970

Entities

People

  • Gabor Schmera
  • Laszlo B. Kish

Organizations

  • Naval Information Warfare Systems Command

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Waves
  • Actuators
  • Adsorption
  • Delay Lines
  • Desorption
  • Detection
  • Detectors
  • Diffusion
  • Electrical Engineering
  • Frequency
  • Frequency Shift
  • Heat Of Activation
  • Molecules
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Warning Systems
  • Waves

Readers

  • Acoustical Oceanography.
  • Electrochemical Engineering/ Fuel Cell Technologies