Quote:
Originally Posted by nelson
Hi WM6
I agree with you on this, but if the device can have some sourse of discrimination like notch on MD, may be you can set it to detect only explosives particles.
I also will like to know how smoke detector for example detects smoke particles and no more than smoke? Is clear that this device is made to work only with smoke, but can this be mod to work to detect other kind of particles?
Regards
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Yes, nelson, effectively it works like notch (of course with other technical solution) but notch we use in vicinity detectors and laser we tend to use as long range detectors.
Notch is usable in relatively clean soil. In soil full of different trash that cover wanted target signal, notch become completely unusable.
The same situation we get with laser at distance. We have 2 or 3 usable molecules at say 100m but before laser beam reach those molecules, beam hit billions of other trashy molecules in air, which give back totally mess of interference chaos and cover usable signals, if it was even created.
Smoke particles detector is another story, it cannot differentiate between different source of smoke.