Old 02-03-2009, 03:51 AM #1
Junior Member
 
Join Date: Feb 2009
Posts: 2
Rep Power: 0
MS72 is on a distinguished road
MS72 MS72 is offline
Junior Member
 
Join Date: Feb 2009
Posts: 2
Rep Power: 0
MS72 is on a distinguished road
Default Questions regarding beam temperature at impact...

Hello to all you people out there in LaserLand. I'm new to the forums and admit that I'm a laser newbie who really doesn't know all that much about lasers, but I've always found them to be very entertaining and interesting.

I'm in the process of designing a project which will be using a laser (if possible) and have a couple questions. If someone with the knowledge and experience could help me i would greatly appreciate it, very much!

After browsing the forums i found a laser setup that looks very promising for my application. This was the high powered keychain (200mw, 215 mw) lasers that use the FlexDive setup. The reason this attracted my eyes was because of it monster output, and size. Size being a priority because my project will need to be inclosed in a small cylinder.

In order for me to use a laser it must be able to meet certain criteria
and i'm not sure if it's possible, this is where help is needed.

Has anyone ever used a laser beam to heat/vaporize a liquid? If so and the results were positive then maybe you can help. The liquid I'm trying to vaporize should have a flash point of around 200F/90C.

Is it possible to use a 200mw (or lower) beam at point blank range with the proper optics and focus to accomplish this? If higher output is needed then what would it take?

Thanks in advance for all help,

Marc


MS72 is offline   Reply With Quote


















Old 02-03-2009, 03:59 AM #2
Class 2M Laser
 
Join Date: Oct 2008
Location: California
Posts: 726
Rep Power: 31
The_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant future
The_Muffin_Man The_Muffin_Man is offline
Class 2M Laser
 
Join Date: Oct 2008
Location: California
Posts: 726
Rep Power: 31
The_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant futureThe_Muffin_Man has a brilliant future
Default Re: Questions regarding beam temperature at impact

Im not sure but it sounds like you will want it on for extended periods of time...which means that jayrob's keychain build (i think is what you are talking about) Doesnt have enough heatsinking. Even if you did jay's pocket mini it still provides more heatsinking than the keychain build. You still have to keep a duty cycle though :-/
The_Muffin_Man is offline   Reply With Quote
Old 02-03-2009, 04:51 AM #3
Junior Member
 
Join Date: Feb 2009
Posts: 2
Rep Power: 0
MS72 is on a distinguished road
MS72 MS72 is offline
Junior Member
 
Join Date: Feb 2009
Posts: 2
Rep Power: 0
MS72 is on a distinguished road
Default Re: Questions regarding beam temperature at impact

Hey there M&M, thanks for the reply! Actually i'm lucky in the long duty cycle area. The laser would only need to operate for about 6 seconds at a time. Say about 6 second on, 30 sec-1 minute break another 6 on......repeated for about 7-8 minutes, then off. However it would need to be able to vaporize on power up and the beam would have to cover about a 2-5mm circle in diameter.

Thanks again, you guys have a great forum here 8-)
MS72 is offline   Reply With Quote
Old 02-03-2009, 05:32 AM #4
JLSE's Avatar
A.R Coated Madman
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 717
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
JLSE JLSE is offline
A.R Coated Madman
JLSE's Avatar
 
Join Date: Dec 2007
Location: ɯɐǝq ssɐ-ǝʇıɹq ǝɥʇ puıɥǝq
Posts: 3,587
Rep Power: 717
JLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond reputeJLSE has a reputation beyond repute
Default Re: Questions regarding beam temperature at impact

What did you have in mind for the liquid? If its transparent you may need to add some dark colour dye, and what kind of volume of liquid do you plan on dealing with?

You may need more than 200mW to pull this one off, but im only guessing here, never tried it
__________________
Recent Projects:
-----
JLSE is offline   Reply With Quote
Old 08-19-2009, 12:52 PM #5
Junior Member
 
Join Date: Aug 2009
Posts: 2
Rep Power: 0
rocky92530 is on a distinguished road
rocky92530 rocky92530 is offline
Junior Member
 
Join Date: Aug 2009
Posts: 2
Rep Power: 0
rocky92530 is on a distinguished road
Default Re: Questions regarding beam temperature at impact...

Sorry everyone this is my first post i hope i am posting in the right area. does anyone know the actual temperature of a 200mw laser beam? Thank you
rocky92530 is offline   Reply With Quote
Old 08-19-2009, 01:54 PM #6
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 16,833
Rep Power: 1016333
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 16,833
Rep Power: 1016333
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: Questions regarding beam temperature at impact...

Yeah... you should have opened a new Thread...
rather than Hijacking this one....


BTW... Welcome to the Forum...


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 08-19-2009, 01:58 PM #7
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 1478
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 1478
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Exclamation Re: Questions regarding beam temperature at impact...

Sorry, but you can't speak about "temperature of the beam" ..... it's an unexistent thing.

That what you can get is the power of the beam (or, better said, the real power of the beam, cause sometimes builders speaks about the power of the diode, but don't mentions loss caused from optics), and, depending from the materials at which you shine it, the temperature generated from this power.

But as i said, it depend from what is the material, grade of absorption and reflection at that wavelenght, and thermal conductivity of the material, so it's an almost-impossible question to answer in simple way.

Edit, ah, well, lasersbee just posted more quick than me
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 08-19-2009, 04:18 PM #8
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 7447
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 7447
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: Questions regarding beam temperature at impact...

Back to the liquid.. I too recommend something very dark, and oqague in color and transparency. Also, the more shimmer, or shine that the outside surface of the liquid has, the more light that it will reflect.. This is why I believe liquids are so hard to work with for this app.
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Old 08-19-2009, 05:30 PM #9
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 1478
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 1478
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: Questions regarding beam temperature at impact...

Quote:
Originally Posted by MS72 View Post
Has anyone ever used a laser beam to heat/vaporize a liquid? If so and the results were positive then maybe you can help. The liquid I'm trying to vaporize should have a flash point of around 200F/90C.

Is it possible to use a 200mw (or lower) beam at point blank range with the proper optics and focus to accomplish this? If higher output is needed then what would it take?
In very short words, "no" and "a lot".

uhm, too short, i guess (LOL)

Ok, seriously, for the liquids, you need too much power, for make the thing feasable ..... just for give you an idea, in a thread about cutting pizza with laser, there's this video that shows peoples making hot coffee and water for tea, using a 2 KW cutting laser ..... look how much time is needed for boil the liquid in the cups with 2 Kilowatts of IR, and you get an idea about what i mean
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 08-20-2009, 01:27 AM #10
Junior Member
 
Join Date: Aug 2009
Posts: 2
Rep Power: 0
rocky92530 is on a distinguished road
rocky92530 rocky92530 is offline
Junior Member
 
Join Date: Aug 2009
Posts: 2
Rep Power: 0
rocky92530 is on a distinguished road
Default Re: Questions regarding beam temperature at impact...

Sorry for posting here i read the thread as Questions regarding beam temperature at impact... and i thought it was ok to ask the question. sorry i posted in the wrong place. does anyone know how i can remove the post? thank you.
rocky92530 is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:10 PM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC