could a speaker damage a laser?

[maxkillz]

I was wondering if a decent power (~1000W) sub could possibly damage a laser either from the vibration or the magnets inside. It messes up a crt monitor if it's within 2 ft of it when it's on.

 

[thesk8nmidget]

sure...


diodes are very sensitive.

but im sure its not very likely unless you are trying to ruin it.

 

[digital_blue]

The reason your sub is messing up the CRT monitor is because of the EMF coming off the coils... I doubt it's actually the vibrations themselves... Subwoofers tend to "move" more air than normal speakers so I don't see why it would damage a laser. Tweeters on the other hand generate higher more "shattering" frequencies which could break diode windows...

 

[maxkillz]

this kind of power, sorry for the crap sound quality I'm using a crap camera, it sounds 100 times better in person

 

[k-shell]

A static magnetic field... no

The reason your TV is affected is because the electron beam is bent by the magnetic flux lines that penetrate the CRT. A diode does not function in this manor. However I would assume there would be some affect with argon, co2, hene and other gas lasers (argon especially!)

But the vibration could damage it, if it were sitting inside of the cone and flopping around like a mexican jumping bean (probably would be one of the funniest things i've seen in a while ). you might also get damage if its sitting right on or near the bass port because of the fast pushing and pulling/shaking that happens there. But if it’s just sitting on top of the box (if the box is of somewhat sold design) or someware nearby it should have little to no effect on it. I would think having it in your pockets would introduce more stresses than a few low frequency sounds waves that are many many times larger than any of the resonant frequencies inside of a small laser...
...

 

[digital_blue]

A static magnetic field... no

The reason your TV is affected is because the electron beam is bent by the magnetic flux lines that penetrate the CRT. A diode does not function in this manor. However I would assume there would be some affect with argon, co2, hene and other gas lasers (argon especially!)

I think he is referring to the sub affecting his CRT, not his laser...

 

[maxkillz]

[quote author=k-shell link=1223514129/0#4 date=1223516101]A static magnetic field... no

The reason your TV is affected is because the electron beam is bent by the magnetic flux lines that penetrate the CRT. A diode does not function in this manor. However I would assume there would be some affect with argon, co2, hene and other gas lasers (argon especially!)

I think he is referring to the sub affecting his CRT, not his laser...
[/quote]
yea it messes it up sometimes if I play a song that goes below 33hz and I have the volume up (the monitor), though the laser does quite a bit of bouncing around if the volume is over 60% and if it's on my desk I usually have it in it's case though.

 

[k-shell]

[quote author=k-shell link=1223514129/0#4 date=1223516101]A static magnetic field... no

The reason your TV is affected is because the electron beam is bent by the magnetic flux lines that penetrate the CRT. A diode does not function in this manor. However I would assume there would be some affect with argon, co2, hene and other gas lasers (argon especially!)

I think he is referring to the sub affecting his CRT, not his laser...
[/quote]

then why is he asking here???

 

[maxkillz]

[quote author=digital_blue link=1223514129/0#5 date=1223516201][quote author=k-shell link=1223514129/0#4 date=1223516101]A static magnetic field... no

The reason your TV is affected is because the electron beam is bent by the magnetic flux lines that penetrate the CRT. A diode does not function in this manor. However I would assume there would be some affect with argon, co2, hene and other gas lasers (argon especially!)

I think he is referring to the sub affecting his CRT, not his laser...
[/quote]

then why is he asking here???[/quote]
because I wanted to know if a sub of this power could damage a laser :-? maybe mess something up in the optics or something internally?

 

[k-shell]

yea it messes it up sometimes if I play a song that goes below 33hz and I have the volume up (the monitor), though the laser does quite a bit of bouncing around if the volume is over 60% and if it's on my desk I usually have it in it's case though.

33hz... so now we're talking alternating magnetic feilds, not static.

so what is the question? could a speaker damage a laser? or could a speaker damage a CRT?

well, yes and no to the laser one.
and YES, definently to the CRT one!

 

[maxkillz]

could it mess up a laser if i push the sub loud enough? is the question.

 

[k-shell]

could it mess up a laser if i push the sub loud enough? is the question.

where is the laser relitive to the sub????

what kind of laser is it??

How many watts is the sub?

and what is the laser sitting on/in?

 

[maxkillz]

about 4ft away on top of my desk

Alpha 105(need to send it out as soon as funds come in), dx 20?, semi functional blu-ray

~1000W

case on my desk, top of my desk about 4ft from sub, same as dx20 (in order I listed above)

 

[k-shell]

Well, if the desk resonates from the frequency then you have a problem. It would be best to just keep them in their cases and maybe set those cases on something like a rag or something that can absorb the vibrations of the desk.
I guess a good gauge for vibrations would be a cup of water. watch how much it ripples when the sub is on... then turn off the sub and let it settle... then start tapping or pounding of the cup (depending on how loud your sub really is) and try to simulate the same amplitude of ripples with out rocking or shaking it, just
tapping. Depending on how hard you have to tap on it will give you a very rough feel for how much energy could be going through your laser. But there are just so many other factors that its hard to tell...

 

[maxkillz]

well I have a few water bottles on the desk and the water inside sloshes quite a bit at certain frequencies. I have to pound on the desk to get the same results. it moves the bottles around even when they are full if I crank it up to about 80-90%

 

[k-shell]

well that sounds like:

A. your desk is built like a drum or
B. that is one loud speaker!