Guys can any1 help me make a bomb detection circuit... i know it sounds wierd and difficult but i wud be very much thankful if someone cud me guide me at this...

 

hi
i'm looking for the same too.

 

This circuit that you speak of would be so expensive, you couldn't afford one. There is a reason why only a select few airports have them.

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How about a dog?

 

dog for bombs??? i don't think so. maybe for drugs!

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well, a detector to detect a bomb when it goes off is pretty easy. though i suppose you mean BEFORE it goes off. nothing like vague questions...

what characteristics do you want to check for? maybe sniff the air and run it through a super sensitive and automated chromatograph looking for the right chemicals? or some sort of CT/MRI scanner looking for specific density of explosives? Maybe if you had a clue as to how it would work we could help you.

the dog will be cheaper...

 

How about a metal detector?

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Dogs are commonly used for explosive searches, but NOT for buried landmines!.

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Landmines would be too cruel. Spend all that time to train them for a single use...

I don't recall ever reading about a portable detection unit. This is reletively new technology, closely guarded. Doubtful you'll find schematics or indepth descriptions. Wouldn't want terrorist know how to defeat them....

 

I dunno let a load of stay dogs run across a field, killed 2 birds (or two dozen dogs...) with one stone.

The use of dogs to sniff explosive is very common, the canine nose is one of the most sensitive there is (there are more sensitive, but dogs can be trained)


its not a case of the cct, that would be relatively simple, it is more of the sensor which will be proprietory.
I heard that some UK university managed to kind of train a load of bee's to buzz when they detected their trained target

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" the researchers demonstrated that they also could train the wasps to detect 2,4-dinitrotoluene (2,4-DNT), a chemical used in certain explosives. The wasps can also be used to detect chemical odors that are associated with certain human diseases, including lung cancer, skin cancer and stomach ulcers, they say. More recently, their group has been looking into the possibility of using the wasps to detect odors associated with hidden bodies, from murder victims to victims of disasters."

Full text at:
http://www.sciencedaily.com/releases...1021120542.htm

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How long does a bee/wasp live? How do the get they to stay on task? Its total madness...

 

I don't know about you, but I wouldn't bother travelling if there were Wasps and Bees hanging around me when I got to the airport. Is this project being funded by Waspeze?

 

For those that find the idea of a living sensor slightly icky , a more coventional ( and expensive) hardware approach is feasible.
http://www.sciencedaily.com/releases...1030061249.htm

This next link , not strictly related to bomb "sniffing" but in the light of recent airport scares relating to liquid based explosives deserves a mention as the method is very clever.
http://news.bbc.co.uk/1/hi/technology/5312220.stm

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It may seem like a good idea at the time , but never stir your cold coffee with a soldering iron.

 

I would think they are very single minded about their tasks, much more so than dogs.