Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
10/31/06 12:22
Read: times


 
#127172 - Fluoresing fluid
Responding to: ???'s previous message
Oliver said:
But I can't see UV

You don't need to see UV, yes you even shall not see it. The idea is to use a fluorescing fluid for the water drops. Then the stroboscope would only iluminate the water drops but nothing else. So, finally you would only see the water drops but not the strobo light itself.

Oliver said:
I'm thinking of watching the behaviour of bass driver cones in an impulse test.

Yes, that would be really cool! Many years ago I "observed" partial oscillations of membran by the help of very tiny electret microphone, which I moved to certain points of the membran. The microphone was in close distance to membran with this testing.
Partial oscillations are not so much a problem of lower tones, because our ear is highly insensitive at low frequencies. You should try to use the stroboscope also for the higher frequencies.

Kai

List of 14 messages in thread
TopicAuthorDate
For fun, LED strobe            01/01/70 00:00      
   I don't see any problem            01/01/70 00:00      
   my narrowest pulse is ~30us and they glow            01/01/70 00:00      
      RGB vs White            01/01/70 00:00      
         Chemistry            01/01/70 00:00      
            Good point            01/01/70 00:00      
               well, they DO emit light            01/01/70 00:00      
         You might want to use UV-LEDs, like in the link?            01/01/70 00:00      
            But I can't see UV            01/01/70 00:00      
               Fluoresing fluid            01/01/70 00:00      
                  RGBU ?            01/01/70 00:00      
   A Real Challenge            01/01/70 00:00      
      A slowly jitter would be helpful...            01/01/70 00:00      
         Cool            01/01/70 00:00      

Back to Subject List