Laser systems for stand-off detection of contamination and pollution of atmosphere

Zygmunt Mierczyk

doi:10.1117/12.726559

23 January 2007 Laser systems for stand-off detection of contamination and pollution of atmosphere

Zygmunt Mierczyk

Proceedings Volume 6598, Laser Technology VIII: Applications of Lasers; 65980O (2007) https://doi.org/10.1117/12.726559
Event: Laser Technology VIII, 2006, Szczecin, Poland

Abstract

The paper presents selected laser systems used for remote detection of contamination and pollution of atmosphere. Having in view a way of taking samples for analysis, the methods used for atmosphere monitoring can be divided into two groups: sampling at the place of existing pollution and remote detection, identification, and measurement of concentration. "Stand-off" and "remote" systems of atmosphere monitoring are described here. The "stand-off" systems provide detection of pollution (gas, aerosol, smoke, dust) at long distances, without the contact with a contaminated area. These systems are active laser systems (lidars) or passive thermal systems with narrow filters matched to the bands of gas absorption and imaging the transmission changes of radiation absorbed along the path of gas presence. A single "stand-off" station can cover significant area, the size of which depends on the range of sampling radiation, field of view, and scanning speed. "Remote" systems employ various types of small point sensors and the data from these sensors are transmitted by wire or wireless connections to alarm centres. It should be pointed out that in this case, a contact between sensor and analysed area is necessary and remote detection is performed by the transmission systems of measurement data. The paper presents construction, principle of operation, and basic analytical characteristics of the chosen "standoff" and "remote" measuring systems developed at Military University of Technology, devoted to continuous monitoring of contaminations and pollution of atmosphere.

Citation Download Citation

Zygmunt Mierczyk "Laser systems for stand-off detection of contamination and pollution of atmosphere", Proc. SPIE 6598, Laser Technology VIII: Applications of Lasers, 65980O (23 January 2007); https://doi.org/10.1117/12.726559

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