Diode Laser-Based Sensor for Fast Measurement of Binary Gas Mixtures

Abstract

The development and characterization of a gas sensor to measure binary mixtures of oxygen and the vapor from a series of volatile organic compounds, with a time resolution of 10 milliseconds, is described. The sensor is diode laser-based, all signal processing is performed digitally, and control of the sensor and electronics, data collection, and real time readout is by a laptop computer. The discussion will focus on the methods used for laser selection, phase sensitive detection, data storage, and concentration measurements for species which do not possess well resolved rotational-vibrational spectra.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1999
Accession Number
ADA379661

Entities

People

  • Andrzej W. Mizlolek
  • Brian Kennedy
  • Jeffrey B. Morris
  • Kevin L. McNesby
  • R. R. Skaggs

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Chemistry
  • Computers
  • Detection
  • Detectors
  • Digital Signal Processing
  • Electronics
  • Field Programmable Gate Arrays
  • Laptop Computers
  • Laser Diodes
  • Lasers
  • Light Sources
  • Measurement
  • Modulation
  • Modulators
  • Signal Processing
  • Sine Waves
  • Spectra

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Molecular Photonics/Laser Physics

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers
  • Microelectronics
  • Microelectronics - Microelectromechanical Systems