Emissions monitoring by infrared photoacoustic spectroscopy

Wayne Jalenak

doi:10.1117/12.48460

1 April 1991 Emissions monitoring by infrared photoacoustic spectroscopy

Wayne Jalenak

Proceedings Volume 1434, Environmental Sensing and Combustion Diagnostics; (1991) https://doi.org/10.1117/12.48460
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

The pollution of the atmosphere and the air we breathe is of major concern today. In order to protect the health and welfare of people and to understand how pollutants affect our atmosphere, monitoring of the air for various pollutants is needed. There are numerous ways to do this monitoring, and a variety of analytical techniques to accomplish it. One of these techniques is infrared photoacoustic spectroscopy. Photoacoustic spectroscopy is based upon the detection of acoustic waves which are generated when a substance absorbs radiant energy. It has been used in many different fields of research including trace gas analysis. The first part of this paper reviews the principles and characteristics of infrared photoacoustic spectroscopy. The second part will describe the development of a portable instrument based upon this technique. The application of this instrument to some problems in industrial hygiene and emissions monitoring will also be discussed.

Citation Download Citation

Wayne Jalenak "Emissions monitoring by infrared photoacoustic spectroscopy", Proc. SPIE 1434, Environmental Sensing and Combustion Diagnostics, (1 April 1991); https://doi.org/10.1117/12.48460

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