Recent advances toward a fiber optic sensor for nerve agent
2008
We report advances made on the development of a fiber optic nerve agent sensor having its entire length as the sensing
element. Upon exposure to sarin gas or its simulant, diisopropyl fluorophosphate, the cladding changes color resulting in
an alteration of the light intensity throughput. The optical fiber is multimode and consists of a fused-silica core and a
nerve agent sensitive cladding. The absorption characteristics of the cladding affect the fiber's spectral attenuation and
limit the length of light guiding fiber that can be deployed continuously. The absorption of the cladding is also
dependent on the sensor formulation, which in turn influences the sensitivity of the fiber. In this paper, data related to
the trade-off of sensitivity, spectral attenuation, and length of fiber challenged will be reported. The fiber is mass
produced using a conventional fiber optic draw tower. This technology could be used to protect human resources and
buildings from dangerous chemical attacks, particularly when large areas or perimeters must be covered. It may also be
used passively to determine how well such areas have been decontaminated.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
2
Citations
NaN
KQI