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Forum index » Science and Technology » Physics » Acoustics
Intensity mesasurement
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estudioacustico@terra.cl1
science forum beginner


Joined: 14 Nov 2005
Posts: 9

PostPosted: Wed Jul 19, 2006 3:55 pm    Post subject: Intensity mesasurement Reply with quote

I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K 3547)
and accesories like mics, cables, and others. I want to know what other
elements are neccesary to make intensity meaurements.
Thanks and luck
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Jens Rodrigo
science forum beginner


Joined: 14 Jun 2005
Posts: 11

PostPosted: Wed Jul 19, 2006 4:14 pm    Post subject: Re: Intensity mesasurement Reply with quote

estudioacustico@terra.cl wrote:
Quote:
I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K
3547)
and accesories like mics, cables, and others. I want to know what
other
elements are neccesary to make intensity meaurements.


Interesting. Are microphone sensitive to sound intensity?
A sound level meter measures the sound pressure level.

Cheers Jens.
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estudioacustico@terra.cl1
science forum beginner


Joined: 14 Nov 2005
Posts: 9

PostPosted: Wed Jul 19, 2006 4:22 pm    Post subject: Re: Intensity mesasurement Reply with quote

sorry, but ZB 0016 is an intensity probe, but i'm not sure if i need
other elements to do that measures. (This unit, 2231 is able to make
vibration measurement inclusive, is a powerful machine).


Jens Rodrigo ha escrito:

Quote:
estudioacustico@terra.cl wrote:
I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K
3547)
and accesories like mics, cables, and others. I want to know what
other
elements are neccesary to make intensity meaurements.


Interesting. Are microphone sensitive to sound intensity?
A sound level meter measures the sound pressure level.

Cheers Jens.
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Asbjørn
science forum beginner


Joined: 09 Aug 2005
Posts: 9

PostPosted: Wed Jul 19, 2006 7:26 pm    Post subject: Re: Intensity mesasurement Reply with quote

Isn't the B&K 2231 a one channel only Sound (and vibration) Level Meter ?
For sound intensity measurements with microphones you need
two identical input channels and special signal processing, see
http://www.bksv.com/default.asp?ID=3027
The signal processing can also be made in software using a soundcard,
and you may use SLMs for the connecting of the microphones to the soundcard.

Asbjørn


<estudioacustico@terra.cl> wrote in message
news:1153326150.324997.232460@m79g2000cwm.googlegroups.com...
Quote:
sorry, but ZB 0016 is an intensity probe, but i'm not sure if i need
other elements to do that measures. (This unit, 2231 is able to make
vibration measurement inclusive, is a powerful machine).


Jens Rodrigo ha escrito:

estudioacustico@terra.cl wrote:
I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K
3547)
and accesories like mics, cables, and others. I want to know what
other
elements are neccesary to make intensity meaurements.


Interesting. Are microphone sensitive to sound intensity?
A sound level meter measures the sound pressure level.

Cheers Jens.
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The Ghost
science forum Guru Wannabe


Joined: 24 Mar 2005
Posts: 115

PostPosted: Wed Jul 19, 2006 8:00 pm    Post subject: Re: Intensity mesasurement Reply with quote

estudioacustico@terra.cl wrote in
news:1153324525.462268.314060@i42g2000cwa.googlegroups.com:

Quote:
I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K 3547)
and accesories like mics, cables, and others. I want to know what other
elements are neccesary to make intensity meaurements.
Thanks and luck


Bruel & Kjaer Type 4437 Sound Intensity Analyzer.
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Greg Locock
science forum Guru Wannabe


Joined: 28 May 2005
Posts: 111

PostPosted: Fri Jul 21, 2006 12:11 pm    Post subject: Re: Intensity mesasurement Reply with quote

estudioacustico@terra.cl wrote in news:1153324525.462268.314060
@i42g2000cwa.googlegroups.com:

Quote:
I have a SLM 2231(complete) a remote control ZB 0016 (part of B&K 3547)
and accesories like mics, cables, and others. I want to know what other
elements are neccesary to make intensity meaurements.
Thanks and luck


In what context? If you have a stationary source, then you just need some
maths. More generally you need another mic and preamp and analyser.

Why are you interested in intensity? It's one of the most useless concepts
I have ever come across in 20 odd years of noise work.

Cheers

Greg Locock
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