Accession Number:

ADA379661

Title:

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

Descriptive Note:

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

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

Report Date:

1999-01-01

Pagination or Media Count:

11.0

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.

Descriptors:

• *FIRE SUPPRESSION
• *GAS DETECTORS
• *BINARY COMPOUNDS
• *DIODE LASERS
• SIGNAL PROCESSING
• SYMPOSIA
• MILITARY VEHICLES
• VAPOR PHASES
• OXYGEN
• FUELS
• MICROCOMPUTERS
• ABSORPTION SPECTRA
• PHASE DETECTORS

Subject Categories:

• Lasers and Masers
• Safety Engineering
• Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE