Hello, dogsbollocks:
Your question is very interesting and I'm very curious about that
too, so let's start research:
First, let's know how the Termal Imager works, found on this FAQ:
Cobra Night Vision Frequently Asked Questions
http://www.cobra-optics.co.uk/faq.htm
"HOW IT WORKS.
Thermal imaging works in the visible band of 0.4 to 0.7 Microns, and
from 0.7 to 12 Microns in the infra red spectrum. Although thermal
imagers have been around for some time, it is only recently that they
have become a potential rival for the latest image intensifiers. This
is because until the current solid state models were developed, all
thermal imageries required a cooling system which was usually in the
form of a nitrogen or compressed air cooling bottle. Therefore they
were extremely bulky, and due to this restriction caused by size and
weight, they were only suitable for tripod mounting, fixed
surveillance positions or reconnaissance. The way in which the new
models score is that they are uncooled, and having dispensed with the
bulky gas bottles that are no longer required, they have become
portable. For example, the Pilkington Lite weighs only 3.5kg. Also,
with the new systems now being solid state technology, they are easier
to manufacture in large numbers, and much less fragile than their
predecessors.
For certain applications a thermal imager is vastly superior to an
image intensifier, in that it can find a person under snow, and troops
and vehicles hiding under trees. Methods do exist to defeat it, but it
is difficult. The best battlefield defence is a special smokescreen
created by firing salvos from 66mm projectors fitted to AFV hulls.
These projectors use M76 grenades which produce a smokescreen of hot
fragments that descend slowly and can be topped up with more salvos.
Special camouflage nets that dissipate heat slowly can also be used,
these are sold by Barracuda in Sweden, and Bridport in the UK.
The drawback at the current time of thermal imaging is cost. With a
basic system at around £10,000, thermal imaging is expensive,
especially when you consider an excellent image intensifier is only a
fraction of this cost. It must also be considered, that as with any
system, it is only as good as the operator behind it. As range
increases people and cars simply become a hot blob. For this reason,
we believe it will be some time before thermal imaging takes over from
a good image intensifier in civilian applications, but it definitely
has its place, especially for tracking fugitives in open country, or
finding adults or children lost in remote areas."
Pay attention to this paragraph:
"Methods do exist to defeat it, but it is difficult. The best
battlefield defence is a special smokescreen created by firing salvos
from 66mm projectors fitted to AFV hulls. These projectors use M76
grenades which produce a smokescreen of hot fragments that descend
slowly and can be topped up with more salvos. Special camouflage nets
that dissipate heat slowly can also be used, these are sold by
Barracuda in Sweden, and Bridport in the UK"
So let's go to Barracuda to know what camouflage dissipate heat
slowly:
Barracuda Mobile Camouflage System
http://www.barracuda.se/node1358.asp?product={CF828E95-F074-11D3-8487-00508B6F1312}
And to Bridport:
Bridport Camouflage
http://www.bridport-aviation.co.uk/html/sectiondefault.asp?sectid=11&pageid=13
"Our range includes Near Infra-red and Far Infra-red (Thermal)
systems, as well as nets manufactured to give broad band attenuation
to radar. All our systems are extremely lightweight, often as much as
half that of competitive equipment, thus increasing ease of handling"
I hope this is what you were looking for and don't hesitate to request
for any clarification.
Search strategy
Night vision Thermal viewer camouflage
://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=Night+vision+Thermal+viewer+camouflage&btnG=Google+Search
barracuda camouflage
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=barracuda+camouflage&btnG=Google+Search
bridport camouflage
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=bridport+camouflage&btnG=Google+Search
Regards. |
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