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Proceedings Paper

Using a CO2 laser for PIR-detector spoofing
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Paper Abstract

This paper presents experimental work on the use of a CO2 laser for triggering of PIR sensors. Pyro-electric InfraRed sensors are often used as motion detectors for detection of moving persons or objects that are warmer than their environment. Apart from uses in the civilian domain, also applications in improvised weapons have been encountered. In such applications the PIR sensor triggers a weapon, when moving persons or vehicles are detected. A CO2 laser can be used to project a moving heat spot in front of the PIR, generating the same triggering effect as a real moving object. The goal of the research was to provide a basis for assessing the feasibility of the use of a CO2 laser as a countermeasure against PIR sensors.

After a general introduction of the PIR sensing principle a theoretical and experimental analysis of the required power levels will be presented. Based on this quantitative analysis, a set up for indoor experiments to trigger the PIR devices remotely with a CO2 laser was prepared. Finally some selected results of the experiments will be presented. Implications for the use as a countermeasure will be discussed.

Paper Details

Date Published: 21 October 2016
PDF: 7 pages
Proc. SPIE 9989, Technologies for Optical Countermeasures XIII, 99890K (21 October 2016); doi: 10.1117/12.2240952
Show Author Affiliations
Ric H. M. A. Schleijpen, TNO Defence, Security and Safety (Netherlands)
Frank J. M. van Putten, TNO Defence, Security and Safety (Netherlands)


Published in SPIE Proceedings Vol. 9989:
Technologies for Optical Countermeasures XIII
David H. Titterton; Robert J. Grasso; Mark A. Richardson, Editor(s)

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