Force exponential window in sound&vibration toolkit

hello,
I work on shock acquisition and analysis. I would like to use a window "force exponential" before computing fft. But I don't find the vi to do it directly in sound&vibration toolkit and VI express toolkit.
So I try to do it by using the VI in signal processing toolkit (see the link picture please) but I lost the time data information (the VI uses array data and not dynamic data with time). how to recover the time data?
J F
Attachments:
exponential_window.jpg ‏131 KB
fft.jpg ‏171 KB

Bonjour,
Je ne suis pas sur d'avoir bien compris, vous désirez avoir le temps écoulé ? le temps où la mesure a été faite ? Pouvez vous me donnez plus de précisions svp. Ci-joins un vi en 8.5 qui pourra peut-être vous inspirer.
Cordialement,
Steve M.
National Instruments France
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>> Vidéo-t'chats de l'été : présentations techniques et ingénieurs pour répondre à vos questions
Attachments:
exp2.vi ‏84 KB

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Hi,
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vibration.vi ‏223 KB
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Hi,
Have a look at the following VI. This seems to solve the problem.
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How to acquire sound from microphone using Sound & Vibration toolkit

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I need to know how we can acquire signals from microphone using S&V toolkit.

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my client had a program written in LV 7.1.1 / S&V Toolkit 3.1 that works, but needing to add features, upgraded to LV 8.6.1 / S&V Assistant 7.0; and now the data is off. I have looked at the data from the accelerometer in MAX and with IEPE enabled I get the expected data and without IEPE enabled I get what the upgraded program returns. So I know what the problem is ...
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Solved!
Go to Solution.

Good Afternoon Lawrence,
You mentioned the S&V Toolkit and the Assistant. Is your new
program written in LabVIEW or did you use the S&V Assistant? Have you seen this KnowledgeBase article?
How Do I Enable IEPE Excitation on My DSA Device in DAQmx?
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/3ad6cce935192b4086256f6b0079cb1f?O...
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Sound and Vibration Toolkit

We have LabView 7.1 and the latest Sound and Vibration Toolkit. I am interested in finding the natural frequency of metalic parts AND entire mechanical assemblies. To obtain the natural frequency, we have purchased an accelerometer and impulse hammer to perform bump testing. From the reading I've done, I believe I should use the FRF functions from the S&V toolkit. Can someone confirm this or direct me to the proper method?
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Hi WantToGolf,
Sounds like you're on your way!
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Need help finding Sound and Vibration Toolkit Example Files

I need help finding some Sound and Vibration Toolkit Example Files?
http://www.ni.com/white-paper/3779/en
From this link you get: getting_started_otb.llb
The missing files are:
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Running Windows 7, LabVIEW 2011, 32bit
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Sound and Vibration Toolkit
Thanks,
-SS
Solved!
Go to Solution.
Attachments:
License S and V.png ‏4 KB

SS,
You can find these files here:
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C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\Sound and Vibration\Order Analysis\Tach Process\SubVIs
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\Sound and Vibration\Order Analysis\Resample Order Tracking\SubVIs
svl-Complex Datatype Default.vi changes to svc-Complex Datatype Default.vi
C:\Program Files (x86)\National Instruments\LabVIEW 2011\vi.lib\addons\_NISVFA\_Shared subVIs\Common
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SOS(The Question of SVXMPL_Settled Dynamic Range (DAQmx) example in Sound and Vibration Toolkit)

The SVXMPL_Settled Dynamic Range (DAQmx) example in Sound and Vibration Toolkit only run one time.
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Sorry, my English very poor.
Windows XP P
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[email protected]
我的个人网站：LabVIEW——北方客栈 http://www.labview365.com
欢迎加入《LabVIEW编程思想》组——http://decibel.ni.com/content/groups/thinking-in-labview

Hi:
I have simulated PXI-4461 in MAX,but the SVXMPL_Settled Dynamic Range (DAQmx) example in Sound and Vibration Toolkit can not right run.
Windows XP P
LabVIEW 7.1 P
DAQmx 7.5
Sound and Vibration Toolkit 3.1
" 一天到晚游泳的鱼"
[email protected]
我的个人网站：LabVIEW——北方客栈 http://www.labview365.com
欢迎加入《LabVIEW编程思想》组——http://decibel.ni.com/content/groups/thinking-in-labview

Problem in Sound and Vibration toolkit Installation

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Third octave operations with "sound and vibration toolkit"

Hi!
I’m working about third octave decomposition with a vibration signal.
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Hello,
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Sound and vibration toolkit - Comment enlever l'offset des signaux délivrés par l'accéléromètre

Bonjour,
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Sound and vibration toolkit using Keithley Card

Hello everyone,
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Hello Jurgen,
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Hi there,
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This is the closest thing I could find:
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