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Vibration octave analysis problem

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I_K
Member
Member
‎02-26-2007 06:52 AM
‎02-26-2007 06:52 AM

Vibration octave analysis problem

I'm measuring a vibration in range of 1-80Hz, according to Iso 2631.

The problem is that I need the velocity information for each 1/3-octave bands. It should be expressed in mm/s. If fractional octave analysis is used it always ends up to psd unit (mm/s)^2. Using some basic fft-analysis the unit is correct (mm/s) but resolution is higher than 1/3 octave. Any ideas?

ps. Is there any plans to develop a weighting filter needed by Iso 2631-2?
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Kurt_Veggeberg
NI Employee (retired)
‎05-02-2008 02:09 PM
‎05-02-2008 02:09 PM

Re: Vibration octave analysis problem

Human vibration filters were added to the Sound and Vibration Measurement Suite in version 6.0 at the end of 2007 compliant to ISO 2631 and ISO 5439.   

 

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