Sound Vibration ToolKit IEPE

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 ...
On the block diagram I am using to enable IEPE excitation "DSA Device Detected: PCI-4461 [svx_DAQmx Popup for DSA.vi]" - but it isn't working, or I am doing something wrong, or need something additional.
Ideally we would like to not have this interactive, but it looks like making Interactive FALSE ignore all the input values (which doesn't make much sense) and trying it in interactive mode = TRUE and entering the info into the controls didn't seem to work either.
Anyone point me in the right direction?
thanx
lmd2
Lawrence M. David Jr.
Certified LabVIEW Architect
cell: 516.819.9711
http://www.aleconsultants.com
[email protected]
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...
Regards,
Charlie Piazza
Staff Product Support Engineer, RF
National Instruments

Similar Messages

The difference of sinad.vi between Sound & Vibration Toolkit and Singal Processing Toolkit

Hi, I'm confused with the the difference of sinad.vi between Sound & Vibration Toolkit and Singal Processing Toolkit.
When the input waveform is single tone, the output is almost the same, but raises much discrepancy while a certain distribution of the spectrum. Does the sinad.vi have some limitation to the input signal? Did I miss some setting of the terminals? Hope someone can give me some suggestion.
Attachments:
SINAD(Front).png ‏85 KB
SINAD(Block).png ‏77 KB

Hi, here's the subVI for the test! Hope someone can give me some suggestion.
Attachments:
SINAD.vi ‏96 KB

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
#adMrkt{text-align: center;font-size:11px; font-weight: bold;} #adMrkt a {text-decoration: none;} #adMrkt a:hover{font-size: 9px;} #adMrkt a span{display: none;} #adMrkt a:hover span{display: block;}
>> Vidéo-t'chats de l'été : présentations techniques et ingénieurs pour répondre à vos questions
Attachments:
exp2.vi ‏84 KB

Reading of Velocity and Displacement is incorrect while accelaration is correct (Sound Vibration toolkit)

Hi,
I'm trying to read vibration using the following system:
Sensor: Accelaration sensor
Device: NI Hi-speed USB carrier NI USB 9162, NI 9233 4 ch 24 bit IEPE analog input.
Software: LabVIEW, NI Sound and Vibration Toolkit, DAQ assistant
The VI that I've for reading accelaration, velocity and displacement is attached. It is giving correct output for accelaration but incorrect result for velocity and accelaration.
The problem seems to be in the use of intergration VI supplied with Sound/Vib toolkit.
I'm also unable to drag drop cursor in the graph of the attached VI.
Can anyone help me getting the correct readings and use the graph?
thanks in advance,
Aniket
Attachments:
vibration.vi ‏223 KB
vibration.jpg ‏74 KB

Hi,
Have a look at the following VI. This seems to solve the problem.
Regards,
Vaibhav
.......^___________________^
....../ '---_BOT ____________ ]
...../_==O;;;;;;;;_______.:/
Attachments:
vibration.vi ‏140 KB

How to acquire sound from microphone using Sound & Vibration toolkit

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

Hi pmg,
If you have the Sound and Vibration Measurement Suite installed, you may want to take a look at the examples here:
<LabVIEW Directory>\examples\Sound and Vibration\Audio Measurements
Thanks as kudos only

How to install sound and vibration toolkit 8.5

Hello all, I have just started using labview and would like to run the "SVXMPL_Third Octave Analysis for Multiprocesor" example as an example for multithread programming, but I run into the issue that the "Sound and Vibration" toolkit is required before running the example. I have installed the labview 8.5. I have gone through the posed link and gone through the list of products installed in my machine (ControlPanel>Add and Remove Programs> National Instruments Software), but I couldn't find the "sound and vibration toolkit". I have tried to run the installation setup in order to add the toolkit. it looks like I have already installed all the available software. I don't know how I should install the toolkit. I appreciate on any comments on how to install the toolkit. I appreciate if you can help me on how to install "sound and vibration toolkit" in my machine.

Never mind. I got it.

Third octave operations with "sound and vibration toolkit"

Hi!
I’m working about third octave decomposition with a vibration signal.
I’m using the sound and vibration toolkit.
The sample frequency of my signal is 2400 Hz.
And I’m working with a 1 second vibration signal (so 2400 points).
Fs = 2400
N = 2400
I need to understand the different and successive operations that the “SVT Fractional-octave Analysis [IEC].vi”VI do.
In fact, I think that my frequency resolution (df = Fe/N=1Hz) is too low.
Do you have a solution?
Maybe I could turn into my 1 sec signal in 10 sec signal with 10 recopies and assemblage of my previous signal?
N’ = 10N so df = Fe/10N = 0.1Hz.
Thanks for your help.
Bastien of paris

Hello,
The first thing you have to do is to read the Chapter 7 of the user manual of the Sound and Vibration Toolset.
You can find it in : program -> National Instruments -> LabVIEW Sound and Vibration Toolset -> User Manual
This chapter discusses fractional-octave analysis, including fractional-octave analysis theory, averaging modes supported by the
Octave Analysis VIs, settling time, and ANSI and IEC standards.
regards,
Marc L.
NIF

Sound and vibration toolkit - Comment enlever l'offset des signaux délivrés par l'accéléromètre

Bonjour,
J'ai en ma possession le toolkit sound & vibration ainsi qu'un accéléromètre ICP couplé à un conditionneur de signal et une carte d'acquisition NI 4431.
J'ai désactivé le courant d'excitation de la carte en paramétrant "Iex Source" en "external" et en mettant 0mA pour valeur à "ex Value". Je pense qu'ainsi, c'est bien mon conditionneur de signal qui prend en charge l'excitation de l'accéléromètre ICP (pouvez-vous me le confirmer au passage?).
Lorsque je lance mon programme j'obtiens bien le signal des 3 axes de mon accéléromètre, mais ceux-ci ont un offset d'environ 140 g. Pourquoi? J'ai cherché dans les options si il y avait moyen d'agir sur cet offset mais je n'ai rein trouvé. Savez-vous si cet offset est normal ou s'il n'a aucune raison dexister?
Par avance merci.
Teka
Labview 8.2 version étudiante
Sound & Vibration Toolkit

Bonjour Teka,
Votre accéléromètre travail éventuellement autour d'un point de fonctionnement (offset). Si tel est le cas, vous pouvez filtrer la composante continue de manière logicielle ou matériel avec un filtre.
Cordialement,
Rémi D.
National Instruments France
#adMrkt{text-align: center;font-size:11px; font-weight: bold;} #adMrkt a {text-decoration: none;} #adMrkt a:hover{font-size: 9px;} #adMrkt a span{display: none;} #adMrkt a:hover span{display: block;}
>> Les rencontres techniques de NI - Mesures et acquisition de données : de la théorie à la mise en ...

Sound and vibration toolkit using Keithley Card

Hello everyone,
Might be doing a project soon using the LABVIEW Sound and Vibration Toolkit(1/n octave vibration analysis required) with LABVIEW 6.1(Sorry, try convince my Boss to upgrade). We have a Keithley KPCI-3101 card avaliable to us for the analog input.
Do any of you forsee a problem using a non-NI card with the sound and vibration toolkit? I can find very little on the internet discussing using non-NI cards with the toolkit.
This might sound like a stupid question but I need to be
100% sure that there are no problems.
Thank you for any help you can offer :-)
Cheers
Jurgen

Hello Jurgen,
Of course the integration with National Instruments boards (PCI-4472 or 445x boards) is best suited with the Sound and Vibration Toolkit. However it is possible to use the toolkit without National Instruments hardware. Most of the examples that ship with the toolkit use NI-DAQ data acquisition calls. You need to remove them from the examples and substitute them for the driver vi's that your board uses. There are also a couple of examples that use simulated signals (so there is no hardware at all involved).
One thing to be aware of is the sample rate. Recommended sample rates, that are used in most examples are 51.2 kS/s. You may need to check if your board is capable of doing this.
Also all the functions use the waveform datatype, (which include
s timing information), so you need to convert your array of data to this datatype, using the build waveform function.
Hope this answers your question.
Best regards,
Erik vH.
Applications Engineering
National Instruments

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?
thanks for your help

Hi WantToGolf,
Sounds like you're on your way!
Cable the output of the impulse hammer to analog input 0 and the output of the accelerometer connected to your device under test (DUT) to analog input 1. The frequency response functions (FRFs) included with the Sound and Vibration Toolkit are the methods you'll use to find the natural frequency of the DUT.
I would recommend using Baseband Frequency Response (DAQmx - No excitation).vi, located at:
C:\Program Files\National Instruments\LabVIEW 7.1\examples\Sound and Vibration\Frequency Analysis\Dual Channel Analysis\SVXMPL_Baseband FRF (DAQmx - no excitation).vi
This VI continuously acquires data from two channels in the same device. No source is provided from the DAQ board, as you will be providing one from the impulse hammer. Triggering from either channel is supported.
The data from each channel is scaled to engineering units, windowed, and the frequency response is computed. The results of the frequency response measurement can be displayed on a Bode plot or a Nyquist plot. The coherence is also graphed to evaluate the validity of the measured frequency response.
You could then use the frequency response to determine the natural frequency of the DUT. Let me know if you have further questions or if this does not resolve your issue!
Chad AE
Applications Engineer

Sound and Vibration Toolkit License

Hi.. I have LabView 2009 SP1 installed in my PC. Currently I am running in evaluation mode, but planning to buy a run - time license. I also have the Sound and Vibration Toolkit on evaluation mode. Do I need to buy a license for this toolkit too? what if I buy the debug/deployment license for labview?

Hi JR Tager, as Dennis mentions you need to buy the license for each of your development computer. In this case the best option is to buy the Developer Suit with Sound and Vibration Option this way you get a discount in the module. Also the toolkit and the Module have to be the Same version than your LabVIEW for example if you are using LabVIEW 2010 you need the 2010 Sound and Vibration Toolkit.
Not all toolkits and modules, requires a Runtime but in this case the Sound and Vibration Module does. Which mean for every executable you create you will need to buy a RunTime License.The part number for the NI Sound and Vibration Software Run-Time License is 779875-01.
Which Software Requires a Run-Time License?
Best Regards
Benjamin C
Senior Systems Engineer // CLA // CLED // CTD

Sound and Vibration Toolkit with NI-SCOPE AND NI-FGEN

Hi,
I would like to use the Sound and Vibration Toolkit with the NI-FGEN and NI-SCOPE,specifically the stepped sine analysis. The stepped sine VI's are compatible with only DAQmx and not NI-SCOPE and NI-FGEN,right?
Any way around this?

Hi there,
Firstly I assume you mean Swept sine and not stepped!?
This is the closest thing I could find:
http://zone.ni.com/devzone/cda/epd/p/id/3347
I had a look for you and there is nothing that works with a swept sine in FGEN or SCOPE natively that we supply. However I do believe that a lot of the functionality could be programmed in FGEN and SCOPE vi's.
You would however need to make copies of all the Swept Sine VI's and replace all DAQmx calls and property nodes with the appropriate SCOPE/FGEN vi's.
Not a short answer I'm afraid and I can't guarantee that all the functionality is going to be there.
Sorry its not a better answer.
AdamB
Applications Engineering Team Leader | National Instruments | UK & Ireland

Sound and Vibration toolkit 3.1

Hi
I acquired 2-channel Acceleration data using NI PCI/PXI 4472 along with Labview DAQ Assistant. I received tdms files and converted them in excel files.
Now I need to carry out spectral analysis of data. I am using Labview 8.6 and am also provided with Sound and vibration toolkit 3.1.
I want final output in the form of a waterfall diagram that I can include in my thesis. I tried using excel data in Matlab but no luck.
I know basic use of Labview but completely new to SVT 3.1.
Can anyone please help me in explaining the basics of using waterfall display Palette in SVT 3.1 along with excel data?
Thanks.

Thanks Jared,
I tried searching for examples and found SVXMPL_Waterfall Display (Simulated). I guess that is the one you are referring to.
I tried to run that one but it ended with Error 1445.
I went through another thread on error 1445 (http://forums.ni.com/t5/LabVIEW/SVT-3-1-LabView-8-Error-1445/m-p/310575/highlight/true#M161064) and the referred knowledge base (http://zone.ni.com/reference/en-XX/help/371361G-01/glang/open_vi_reference/) but could not get how to correct the error. I am attaching the screent shot of the VI.
It would really be of great help if I can get an idea on how to solve error 1445 for this VI.
Attachments:
SVXMPL_Waterfall Display (Simulated) VI screenshot.JPG ‏89 KB

Sound and Vibration toolkit for vibration analysis

Hi guys! I am new to Labview. I am trying to use Sound and Vibration toolkit to analyse the accelerometer signal mounted on a motor through myRio. The analysis are spectral map, order tracking, power spectrum, order spectrum etc. But nothing can be seen from the output graph. The only result I get is from vibration level.
Attached is a screen shot of my vi and actual vi file. Am I doing it correctly? I really need your help guys....
Thanks.
Attachments:
Vib.vi ‏384 KB

SK,
You have serious problems in your File.VI. Why are your writing to your file and then reading it right back? Worse, there is no guarantee that the File write will actually occur before the File Read. You have a race condition set up there between those two Spreadsheet File VI's.
If you want to maintain a history of whatever has already been written to the file, you should be building it into an array and storing in a shift register. Even if your File.vi would by chance work the way you want it to, storing data in the file system is much slower than maintaining your data in memory.
As for your while loop, it is going to run as fast as it can with respect to all the functions occurring inside of it. Is it possible you are getting 14 iterations of that while loop for each frequency step that is occurring?
Message Edited by Ravens Fan on 07-25-2009 01:35 AM

Sound and vibration Toolkit 7.1 on Labview 8.0

Hello!
I kind of expect the answer is to cash out for a toolbox upgrade, but nevertheless I will ask the very logical question:
When I have an old Sound and Vibration Toolbox, how can I use it on a newer LabView Installation?
I could install, but when opening some of the example VI(SVXMPL_Averaged Frequency Response (DAQmx).vi), they do not work. The sub-VI's (e.g. svx_ClearAO_ClearAI (DAQmx).vi) have broken connections and even a mass compile didn't help. After the mass compile I have a long log of errors. So has anyone been successful in doing this without buying the newer version of the toolbox?

Hi
Let me double check the version of Sound and Vibration toolkit you installed
as the latest Sound and Vibration toolkit is version 6.0.
This information is in Measurement & Automation Explorer(MAX)
if you go to MySystem >> Software >> LabVIEW >> Sound and Vibration Analysis VIs.
As well as this, please let us know the version of your DAQmx driver.
It sounds many DAQmx VIs are broken and your DAQmx might not be a compatible version of the toolkit.
Regards,
Ayumi

Sound Vibration ToolKit IEPE

Similar Messages

Maybe you are looking for