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Andy Peters
02/27/13 16:08
Read: 956 times
Tucson, Az
USA


 
#189501 - re: frequencies below 10 kHz
Responding to: Jim Granville's previous message
Jim Granville said:
Oliver Sedlacek said:
As I'm usually interested in frequencies below 10kHz, it's all well within the scope of homebrew kit, so investing in an expensive network analyser never seems justified.


As you are below 10KHz, why not try something like this ?

http://www.daqarta.com/

This uses a PC Sound Card, and has good frequency measurement tools.
It has a script language, so you should be able to control tests.


One thing Daqarta doesn't do is transfer function, which for control systems could be useful. For that, one might try Smaart. It's designed for acoustic and audio measuring (with a reference signal fed into a system and a measurement input taken from a microphone or an audio output of the system under test).

Disclaimer: I know the Rational Acoustics guys and have done some work for them.

-a


List of 9 messages in thread
TopicAuthorDate
Do I have to buy an expensive network analyser?      Oliver Sedlacek      02/25/13 03:34      
   Automate it?      Andy Neil      02/25/13 03:52      
   frequencies below 10kHz...        Jim Granville      02/25/13 13:32      
      re: frequencies below 10 kHz      Andy Peters      02/27/13 16:08      
   If you really need one, maybe you should rent one      Richard Erlacher      02/26/13 00:40      
   PRBS      Steve M. Taylor      02/27/13 14:13      
      Impulse response...      Andy Neil      02/27/13 15:50      
         That seems a bit hard      Oliver Sedlacek      02/28/13 02:23      
   How about the the new Agilent scope,      Kalpak Dabir      03/02/13 23:39      

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