Laser Applications???

Ammar7lb

Mar 16, 2004
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I'v read alot of projects which depend on ultraSonic waves to measure distances and avoide barriers
So is it possible by using Laser ,I mean : Could I use Laser to measure distances and How ??

http://

 

surajbarkale

Aug 5, 2004
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In the first moon mission they put up a mirror on Moon. It was used to measure the distance between Earth & Moon accuratly by bouncing a LASER back from that mirror. As the speed of light is tremendous (3*10^9m/s) you can not use LASER to measure small distances. Maybe you can measure above 500m. But I am not sure.

 

ante1

Jan 24, 2004
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Hi Suraj,

How do you explain that the cops measure your speed with a laser? They don

 

Ammar7lb

Mar 16, 2004
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Hi Ante
About How cops measure your speed ?
I think that they use UltraSonic Waves cause it is accurate and easy to use

 

ante1

Jan 24, 2004
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Ammar,

I know that they are using laser guns to measure the speed! ;D

 

Kevin Weddle

Feb 23, 2004
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The time there at 300 meters is 1us. The time there at 1 meter is 3.3 ns.

 

Kain

Jun 16, 2004
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Yes they do use LASER for speed measuring. My friend found out in the hard way while crusing at 200+ mi/h ;D

 

Ammar7lb

Mar 16, 2004
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THanks alot for your replay

Another Question: Is there any famous application which can made by using Laser??

 

ante1

Jan 24, 2004
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Browse here for ideas:
http://homepage.ntlworld.com/electricstuff/lasfluo.html
http://www.metrologic.com/edu/global_info/funw.asp

 

steven2

Jan 19, 2004
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intresting ive got the lazer radar detecter that detects those hand held radar guns the police use or used to use. as for lasers measureing distance yeh theyve got a spirit leveler out that uses a laser to give you the strait line and i think it measures to, ive seen it at the hardware but dident look into its function very much

 
F

Fatal_Byte

Jan 1, 1970
0
If you don't want to be clocked by a radar gun you have to have an anti-reflective surface all over your vehicle. Stealth bombers are coated with an anti-reflective surface also...as you might think its not cheap or practical for us.

 

steven2

Jan 19, 2004
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:)well ive found some intresting stuff online about radar invisibility and it relates to the stuff cassette tapes are made of and onother one relates to the rusty stuff on steell when it gets rusty  are they radar obsorbant like that iron oxide on tapes or other

 
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