How can i acquire analog signals from PXI 4472 card?

Regards
Aks
(Appreciate answers by giving KUDOS)
Hit the stars.............. sky is not the limit.

There are a lot of shipping examples for DAQmx. Once you open the example finder (Help>Find Examples), use the 'hardware' listbox at the bottom to find all of the examples that pertain to a 4472.
Message Edited by Dennis Knutson on 10-28-2008 07:30 AM

Similar Messages

  • How can I import HDV-Files from a CF-Card to Final cut Pro 5.1.4

    How can I import HDV-Files from a CF-Card (recorded with the Sony HVR Z 7E) to Final cut Pro Version 5.1.4 – is this possible at all?
    I managed to import the files to Premiere, but it was just a test. I am working at a very huge documentary project with Final cut Pro Version 5.1.4 thats why I would prefere not to change the program or the version.
    Simply exporting from Premiere back to final cut is also very complicated.
    Thanks for any ideas.

    First, copy the card to a hard drive connected to your fcp workstation.  I always back up all card based media at least 2 or three times.  All hard drive will eventually fail.  It's a question of when, not if.
    I'm not familiar with this particular camera, but examine the contents of the copied files and see if you can find any .mov files.  You can try importing these directly into fcp.
    If you don't, you can try something like clipwrap
    http://www.divergentmedia.com/clipwrap
    or
    Magic Bullet Grinder
    http://www.redgiantsoftware.com/
    But, I'd really advise upgrading to at least fcp6 or ideally fcp7 if you can find a copy.  HDV is a problematic format.  Although you can certainly work with it and it's a fcp approved format, converting your media to prores would make your life much easier.

  • How can I tell if signals from two devices are truly synchronised?

    Hi there,
    How does one check that signals from two devices (two separate devices in a single X-series chassis) that should be synchronised actually are?   I am using a PXIe6361 and PXIe4331 on a PXIe-1073, with Labview 2001 SP1 64-bit. All devices are using the Sample Clock from the 4331 device, and an AI Start Trigger, so they should be synchronised.
    I thought that writing the signal data to file and checking the time stamp for each column of data would be the most accurate, but I have been told that timestamps are software created and therefore don't reflect the actual time that the signals were acquired by the hardware.  When I do this, the timestamps vary by up to 150ms which is larger than I expected.
    If I set the x-axis of the waveform graphs (on the GUI) to "Time" then it appears that the first data sample is taken at different times for the two plots (one plot per device).
    If I set the x-axis of the waveform graphs (on the GUI) to "Ignore time stamp" (so that the x-axis just starts from 0 rather than a date-time) then the first data point occurs at "0" for both graphs. However, I'm not sure that this reflects the actual alignment of the signal.
    What is the best way to check if signals collected on different devices in the same chassis are actually synchronised?
    Thanks,
    Claire.

    Hi Lynn,
    Thanks for your help and for sending the demo.
    I understand the concept of how the signals will look if they're not synchronised and your demo shows that nicely. I guess I have been perplexed by someone else telling me that the timestamps in the output file (and following from that I assume timestamps on a waveform graph) do not give an indication of whether signals are synchronised. The reason they gave for this was that the timestamps are manufactured by the software, not the DAQ hardware.  They suggested that I put the setting "ignore waveform timestamps" on my waveform graphs, and then check that both signals come in at the same time (i.e. both start at zero), but I'm not convinced about this. 
    When I use an analog trigger, neither the timestamps in my output file or on the two waveform graphs are synchronised. If I don't use the trigger, then there is far less disparity in the timestamps in the output file. I've attached two output files here, and my VI.
    This is my first attempt to synchronise a voltage module and a strain gauge module on an X-series chassis, so I want to make sure that I'm achieving the best synchronisation that I can, and the difference in behaviour with and without the trigger worries me.
    Thanks,
    Claire.
    Attachments:
    without trigger.txt ‏5 KB
    with trigger.txt ‏6 KB
    Multi-Device Synch-Analog Input-Finite Acq-Analog Start_Claire_wDigitalin_12June2012 PTbridge.vi ‏196 KB

  • How do create an analog signal from a text or binary file?

    I'm trying to output an analog signal from a file on an NI-DAQ 6251 card using labview 8.5. I've found the examples on building a waveform, but I'm stuck at how to read a text file and make a 1-D array to input my amplitudes into the buildwaveform.vi and I can't find any information on how to do so. Any help or direction is greatly appreciated.
    thanks,
    David
    Solved!
    Go to Solution.

    If all that you want in the file is the Y values, then a text file with a value on each line could be read. The Read From Spreadsheet File can be used. It will return a 2D that you can then use the index array function to get a column or if you select Transpose, the returned 1D array would be used.
    If you want to create an example, use a 1D array constant in a VI and pass it to the Write to Spreadsheet File.

  • Analog signal from PXI

    Hi everybody,
    I have a problem: I cannot acquire 6 analog signals with a PXIe 8135 with 4MS/s. I use two boards with 4 MS/s, 16 bits and 8 Analog Inputs. I use a subVI of SAMPLE CLOCK for configuration with this parameters, Continuous SIGNAL, SAMPLE RATE = 4MS/s ( see attachment ). With one signal is ok, but with 2 signals, i have an overload Memory Message.
    Where is the problem in the VI?
    Thanks for your help.
    Attachments:
    acq_and_graph.zip ‏165 KB
    acquire&loggdata.png ‏230 KB

    Quickly looking through your code now, try removing the "Number of Samples analog".  Since you are using Continuous Samples, you are just limiting the buffer and also limiting how many samples you can read at a time.
    But you might want to think about using Finite Samples.  You know how long you want to log for and you know your sample rate.  So why not just do the simple math and tell DAQmx to get that many samples?  You can use the DAQmx Task Done? VI to see if it is done.  That would be much simpler than checking the time that has elapsed.
    There are only two ways to tell somebody thanks: Kudos and Marked Solutions
    Unofficial Forum Rules and Guidelines

  • How can I acquire the data from 3 separate Channels of SCXI1300 simultaneously?

    I am trying to build a DAQ system, which can collect the data coming from 3 different channels. I am using the SCXI 1300 board, Labview 8.0. I used 3 separate DAQ Assistant module to build the system, but it can not collect the data from the 3 channels simultaneously, it can only collect the data from one channel by another channel. So I am wondering how could I fix this problem or rebuild my system.  Thanks

    Hi, Dennis
    I tried to use the NI-DAQmx to replace the DAQ Assistant to do the 3-channel data acquisition simultaneously, and I did the signal splition as you told me. The program works fine for 1-channel data collection, but if I chose 3 channels to do the data acquisition simultaneously, the program could not wokr, and  a warning window  kept poping up, and the window tells me the maximum sampling frequency is 0.952. So I am wondering what is going wrong and how to fix it.
    The attached files are the code and the screen shot of the warning window, please check them.
    Thanks
    Jingrui
    Attachments:
    NI-DAQmx program.vi ‏165 KB
    Warning Window.jpg ‏2305 KB

  • Acquiring analog signal from PC mic

    Hi Guys,
    Is it possible to acquire a signal (audio) from a laptop mic and display it in Labview? I know this can be done with a DAQ card but I was curious if I could bypass that and just use the mic in my laptop. 
    Thanks.

    Here is a higher level example, for LabVIEW FDS:
    http://decibel.ni.com/content/docs/DOC-4834
    -AK2DM
    ~~~~~~~~~~~~~~~~~~~~~~~~~~
    "It’s the questions that drive us.”
    ~~~~~~~~~~~~~~~~~~~~~~~~~~

  • How can I delay analog signal?

    I have an analog signal, the frequency is less than 1kHz. I want to get a delayed analog signal. Is it possible to realize analog delay generator using labview (daq card is PCI-6115)? I hope I could specify the delay time.
    Any suggestion will be greatly appreciated!
    Stephen

    Hello Stephen,
    It is possible to institute a delay an analog output. This is best done by specifying a trigger and then beginning the output when that trigger occurs.
    Below is a link to an example program developed for LabVIEW that waits a specified number of seconds and then triggers analog output to begin. This code performs analog input as well, but for your program you could remove that portion. The trigger that is used is RTSI pin 0. After a specified period of time, the RTSI pin 0 is set to 1 and then the analog output begins.
    Analog Input with Delayed Analog Output
    Take a look at this example and
    try to build from it for your code. If you have any further questions on this issue, let me know.
    Regards,
    Scott R.
    Applications Engineer
    National Instruments

  • How can I acquire trace data from Agilent(HP)8510c Network Analyser in VB6 using PCI-GPIB and NI-488.2.

    I am developing an application in VB6 for measurements with Agilent (HP)8510C network Analyser using NI-488.2 and National Instrument PCI-GPIB card. I want to take data for the whole 51 points. In HPBASIC which used to be employed for this purpose it is done using OUTPDATA command and the data is in a 2-dimensional array. How can I do this in VB6 with the hardware above.
    kapil

    Hi Kapil:
    Please refer to a previous post on the same topic:
    http://forums.ni.com/ni/board/message?board.id=140&message.id=7758#M7758
    Although this is for C++, the basic functionality should be the same. Since OUTPDATA is from a specific instrument driver, your best bet will be comparing it to the instrument drivers mentioned in the previous post.
    Thank you,
    Emilie S.
    National Instruments
    Applications Engineer

  • How can I amplify audio signals from wav file?(gain control)

    I want to develop an audio equalizer using labview. How can I control the gain of the audio signal (amplify) using labview vis.

    If your audio signal is in form of a numeric array or a waveform cluster, to amplify it, just muliply it with a numeric value
    like in this VI
    Regards
    Dev
    Attachments:
    Amp.vi ‏51 KB

  • How can i read pwm signals from a rc receiver using myrio??

    Hello, i bound a transmitter (rc remote control) with a receiver which i connected it (the signal's pin) to the digital port on myrio. It showed me a boolean indicator, and it wasn't turning on the whole time even when i moved a cursor on the transmitter. When i put a time delay of 1sec in the code the results started to show true on some positions of the throtlle. Can anyone tell me how can i interpret those result to create signal conditioning and control some motors?? thank u all in advance

    This is the point in the phone conversation when the mechanic tells the customer, "Why don't you bring your car in?"
    Please upload your code so we can help you figure out what's wrong.
    Bill
    (Mid-Level minion.)
    My support system ensures that I don't look totally incompetent.
    Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

  • How can i get a refund from iTunes gift card?recipient is not in my region!

    Dear Sir/Madam,
    I just wonder how i can get my refund according to recipient's region. my friend subcribed his Apple ID as US and mine is in Thailand, as a result, my friend cannot download application i sent and it asked my friend to put in a Redeem Code everytime. Again, i just report a problem from itunes but when i clicked it didn't appear as an email. How can i report a problem? how can i get my money back? please help..
    Regards,
    Ampha

    You probably will not be able to get a refund. The iTunes Store makes it pretty clear that gifts are redeemable only in the same country, and the terms of sale say that all sales are final. But you can contact the iTunes Store and ask:
    http://www.apple.com/support/itunes/contact.html
    For future reference, you will not get responses from Apple to any question you ask in these forums. We're all just fellow users here. And you posted in a forum for questions about the Communities themselves. You usually will get the quickest and most applicable answers if you ask in the forum dedicated to the product or service about which you are asking.
    Regards.

  • How can I upload my photos from an sd card to my Macbook Pro? I have done everything I know to do, and yet it still doens't work, I am frustrated and ready to sell this thing.

    I am so frustated with this computer, I cannot get it to do anything. I have read all the forums about moving photos from an sd card to this computer and nothing is working..Can anyone please help me before I sell this thing?

    put the card in the card reader, open the card (it should appear on your desktop) select the photos you want to copy and drag them to where ever you want to store them, or copy and paste them.  it is exceedingly simple.
    alternately open image capture and select the card from the list of devices and import them from there.  again very easy.

  • HT201302 how can I down Load Photios from My Camra Card

    How can I down load my Camera card to my I cloud

    http://www.howtogeek.com/175416/no-icloud-isnt-backing-them-all-up-how-to-manage -photos-on-your-iphone-or-ipad/
     Cheers, Tom

  • How can I retrieve photos imported from a CF card?

    I have imported photos from a CF card to my MacBook Air via card reader to iPhoto, later exported a couple of them to Facebook (i.e., I saw them in my iPhoto library after import). Then they disappeared. I run Yosemite and and have the latest version of iPhoto.

    MediaRecover or Picture Rescue
    will recover images from a card.

Maybe you are looking for

  • Problem with a stored procedure to search in a table

    h5. Hi, h5. As many people on the forum, I'm new on PL/SQL programming. h5. I'm trying to program a stored procedure that allow to search on my table fields with different parameters. h5. All this parameters doesn't need to be set, at least one. h5.

  • Uploading a file to server using ajax and struts

    My problem is i wrote a program to upload a file to the server using Ajax. Here iam used Struts and Ajax. The problem is when iam uploaded a file from my PC the file is uploading to the server in the upload folder located in the server my system. Iam

  • Zen Touch Software Problem!!

    Hi! I've still got this old problem with my zen touch. I did some backup of my own files and copied them on my zen touch. Now that I need this backup I can't get any access to my data files on my Zen Touch. I have no problems accessing the music file

  • Can You Listen FOR while AS does something else too?

    Play and control the playing of a QT movie while also listening with Speech recognitionServer to some word from the user. i heard AS cant multithread.......

  • Problem serializing and unSerializing.

    Hello, I am experiencing some problems with a client/server application I am writing. After I open a Socket the server application has to send to the client a comment and an object in certain time intervals. Here is the code on the server side:     c