A Nitrogen Dioxide Monitor Based on Nondispersive Visible Optical DetectionEPA Contract Number: 68D50105
Title: A Nitrogen Dioxide Monitor Based on Nondispersive Visible Optical Detection
Investigators: Kebabian, Paul
Small Business: Aerodyne Research Inc.
EPA Contact: Manager, SBIR Program
Project Period: September 1, 1995 through March 1, 1996
Project Amount: $65,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1995) RFA Text | Recipients Lists
Research Category: Ecological Indicators/Assessment/Restoration , SBIR - Monitoring , Small Business Innovation Research (SBIR)
Description:The problem addressed in this project is the need to monitor oxides of nitrogen (NOx, ie NO and NO2) levels in the combustion gases of stationary sources such as power plants in order to facilitate on-line control of the scrubbers that will be used to remove those pollutants. Since the measurements are in the parts per million range, simpler and less expensive instruments than those currently used, such as chemiluminescent analyzers, may be advantageous. The proposed innovation is to use recently available light emitting diode (LED) light sources and fiber optic components to realize an NOx monitor working on the gas-filter correlation principle. The Phase I effort will consist of:
- building a prototype in the proposed configuration, and measuring its
sensitivity and response to interferents;
- determining by experiment and modelling an optimized design, specifically
optimizing the filter design and the coupling of light from the sources into the
- testing the feasibility of real time computer control of ozone titration of NO to NO2.