Measurement of Oxygen Concentration Using Laser Diode Spectroscopy

Laser Spectroscopy provides a non-intrusive method for measuring the concentration of a species in a sample. This paper is part of the development of employing laser spectroscopy techniques outside of a lab setting. Monitoring the presence of gaseous oxygen within a fuel tank is of great importance due to the volatility of the fuel/oxygen mixture and the threat it creates to the area surrounding the fuel tank. A technique using absorption spectroscopy to monitor the concentration of oxygen within the tank has been developed. Light from a laser diode is sent through a test cell containing an unknown concentration of oxygen. Oxygen molecules absorb some of the light and a photodiode measures the amount of light that passes through the cell. A correlation between the amount of light through the test cell and the oxygen concentrations is obtained and compared with measured concentrations. It was found that there was a measurable difference in output from the photodiode when the concentration of oxygen was changed within the test cell. The laser diode system effectively monitors the oxygen concentration in real-time in the test cell and provides a simple and low-cost alternative to standard oxygen analyzers.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1845640195
• Corporate Authors:

  WIT Press

  Ashurst Lodge
  Ashurst, Southampton  United Kingdom  SO40 7AA
• Authors:
  • Disimile, P J
  • Pyles, J M
  • Toy, N
• Conference:
  • The First International Conference on Safety and Security Engineering (SAFE/05)
  • Location: Rome , Italy
  • Date: 2005-6-13 to 2005-6-15
• Publication Date: 2005-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 483-493
• Monograph Title: Safety and Security Engineering

Subject/Index Terms

• TRT Terms: Absorption; Cells (Measuring devices); Diodes; Gases; Laboratory tests; Lasers; Molecules; Oxygen; Oxygen content; Spectroscopic analysis; Spectroscopy
• Subject Areas: Highways; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 01007137
• Record Type: Publication
• ISBN: 1845640195
• Files: TRIS
• Created Date: Nov 11 2005 2:15PM