Question about sampling DAQ

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• Question of sampling DAQ Assistant

  Hi all

  I have attached a VI that I used to record data from a few different voltage and the channels of the strain. All channels and sensors work perfectly and the VI reads data very well, but will be only newspaper for about 9 seconds. I found that the reason is that, within that period, the amount of updated read samples is reached. I also found that the reason for which is rather than on the statement sampling DAQ assistant 50 or 100 Hz it samples at a rate of about 1.6 kHz (0,000620 seconds). I have nothing seems to change the rate of that sample to so if anyone has any ideas it would be much appreciated!

  Thank you very much

  Andrew

  I think I can explain what is happening. In a previous post, the op mentions using a 9237. That has a sampling rate minimum of 1.63 kech. / s. The rate in the corresponding file.

  Andrew,

  Read the Manual would have answered your question.

• Question about USB DAQ 6363

  Hi all,

  I'm new with LabView, currently, we plan to purchase NI DAQ USB 6363 to use the entry to read the value of the resistor, capacitor and a diode and use digital i/o to check the functionality of the analog shift register. I want to check if it is possible that NI DAQ USB 6363 to acquire communication RS232 function because I want to drive barcode interface on it. I'll use LabView to log the reading result of database (SQL, Access) to do some data analyzation. IM also confused on test bench OR what is the relationship between she and NI LabView? is this another software to install except for LabView?

  Thank you

  No, you do not connect an RS-232 device to the DAQ card. The RS-232 is connected to the pc. If your pc lacks a built-in port you can use a USB-> RS232 converter.

  TestStand is a test of the direction which runs tests written in several languages, including LabVIEW. He plans the tests determine the success/failure, record results, create reports, etc.

• Questions about an average of response spectrum and frequency of feeding mode.

  Hello

  I have a few questions about an average of mode. When I generate a sinusoidal signal from one output to two input channels channel to see if my DAQ card works well and vector averaged in the power spectrum for DFT, the amplitudes was different from the previous one of the amplitude, which was supposed to be 1 v peak. They range from 0.5 v to 0.6 v peak. When the calculation of the average model is RMS, the amplitudes were close to 1. I wonder what are the fomulas of RMS and average vector. Does that mean that I could not accurate if I use an average of vector? In a time of frequency response, why I coherences of difference and the amplitudes using the vector and the mean quadratic value?

  Thank you

  Ningyu

  rico1985,

  The differences in modes of generation are as they sound: 1 sample output only a sample writing, N samples will be released however many samples configure you for each entry, and the continuous samples released samples continuously until a specified user action happens (you press the stop button or a logic that you created gets fulfulled). The range of Signal output allows you to set a ceiling high and low level of your output signal and it only affects the quality keeping in this beach. Timing to set a deadline for the time between the acquisition of the sample. If a new sample becomes unavailable before the timeout setting, you will get an error. This is useful for looking at a network, because if the network goes down and you stop getting data from a machine and then you would like to know about it. I point you to those videos that are short tutorials on how to make the most of these actions in SignalExpress.The SignalExpress 3.0 Help file is also your first point of contact for all your questions on getting started. These two resources should get you up and running in SignalExpress in no time. (either by the way all your questions answered using these resources) Bravo!

• Questions about the synchronization between output and analog input

  Hi all

  I now have a simple task which head a signal voltage (from PXI ao0) on a circuit and then your comments a voltage at the terminals of a component, for example, that one of the resistors in the circuit, through ai0 on PXI. So in this case, the synchronization between analog input and analog output must be made to avoid error of phase shift.

  I tried to build my VI by learning this example: https://decibel.ni.com/content/docs/DOC-3882

  However I have a few questions.

  1. I noticed that there is a merged error fed the "start task" sub VI for the analog output.  What is the point of fusion to mistake?

  2. I enclose my VI (also shown below) for the output voltage. I put my writing of DAQmx Subvi in the while loop so that I can change the voltage while the VI is running.

  

  However, in the example, the author has been reading outside of the loop and before even the start task. What difference will it make?

  3. I have also attached my synchronized VI. I always put the wavegeneration and the DAQmxwrite in the loop. A bulging guard error saying about samples is not available and needs to a higher sampling rate or a longer wait time. What causes this?

  I appreciate that these problems can be solved. Thanks to you all.

  (1) first you need start the task of acquiring, he'll wait for trigger here. And then you start the build task that provides this trigger. If acquisition could trigger and never start.

  (3) you must first write something in the buffer (writing DAQmx), then only you can generate it (Daqmx Start).

  Check Cont Gen tension Wfm - Int Clk - no Regeneration.vi in the help-> examples for example.

• a few questions about the Push Service

  Hi all

  Have some questions about a Service of BlackBerry Push.

  (1) when registering for the assessment, it is requested

  Source IP address for shoot - what happens if I have a dynamic IP and I have two servers different one for development and one for the Production environment?

  1. Push is via the BIS-B connection only
  2. Register to access push Eval with RIM. Download the SDK, which includes a sample application for the client side and 3 examples of applications for the side server. Once RIM gives you access to Eval, you'll have an app ID, password and other details. Deploy the provided sample applications and enter your Eval details when prompted. The client-side sample must be deployed on a real device (i.e. not a simulator). There is a catch: many developers (including myself) have reported on this forum that their client-side sample is not able to receive push messages.
  3. I did not look to push on BES, sorry.

  I am fairly new to push myself, feel free to correct me if I'm wrong.

• Question about ActionBar on the first screen of the application

  Hi, I have a question about the actionbar behavior in the first screen of the application

  index.htm pushes immediately main.htm with actionbar. ActionBar clicks and responds correctly until I have add overflow on some buttons.

  When I click on the button of overflow, the overflow is displayed at the bottom of the page, the top of the overflow is put in correspondence with the upper part of the actionbar so buttons actionbar overflowing content is not visible.

  I reproduce this problem with the sample application.

  This is expected behavior? Is there a way around it?

  I was able to reproduce the problem and have connected it

  https://github.com/BlackBerry/bbUI.js/issues/329

• New in AS3: stupid question about event listeners...

  Hi all

  I am a newbie in Flash and have a question about event listeners. I have a site I'm developing with a movie clip navigation which is composed of several buttons. What is the right way to write the event listener?

  Here's a sample of what I have:

  I have a clip called 'buttons_mc' that contains the symbols of individual button with various names such as "btn_history". So far, I don't have an instance name for the clip of the film itself.

  My event listener:

  btn_history.addEventListener (MouseEvent.CLICK, history);

  I have to put something before the "btn_history" which refers to the video? I get this error message:

  1120: access of undefined property btn_history.

  Thank you!!!

  Julia

  Yes, it is preferable to have at least one layer dedicated to actionscript.  I often use a couple... one for code shared (functions and variables) and a level of the frame code (stop(), etc.).

  The code must be in a scenario where the button is directly accessible.  If your button is accessible in frame 1, which means that it does not animate in place such that it is not really intended to be used until you get somewhere near the bottom of the timeline, then you can target the button of the timeline that holds the buttons_mc movieclip.  So as I described earlier, if you give this movieclip an instance name of "buttons", and then to assign a code to the button on the inside you should use...

  Buttons.btn_history.addEventListener (MouseEvent.CLICK, history);

  But if the button exists somewhere down the timeline inside the buttons_mc due to the animation of the button, which means that there is more than one key image for the button, then you must place the code that you have initially shown in the last keyframe to the bottom of the timeline where he set the button in place.

  .

• Where can I ask a handful of general order questions about Firefox OS as a consumer and get the answers? (a forum or something similar)

  I have about seven questions about Firefox OS. I'm potentially interested in opting for a tablet that works instead of Android or iOS. I couldn't find a place to ask questions like that. Thank you!

  https://support.Mozilla.org/en-us/forums/Firefox-OS-English-Forum

  There is another option.

• About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  Hi Michael,

  If you want to stop receiving notifications by electronic mail, in the thread, that you have created, then I suggest that you follow the steps below:

  One time connected to the Apple Support communities, visit your mini profile and select manage subscriptions.

  

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  Select next to see what content you are currently following.  Note that any thread you are responding you subscribe you automatically to this thread.

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  Take care.

• Where and how do I ask questions about Email?

  The Commission opening thingy is complicated, I have trouble finding my way around it.  I don't know where or how questions about email.  Is there an easier way than trawling through all these icons?  Like a list or something - as you get on all other forums on the internet?

  It would be a good starting point: Mac mini

  Or the appropriate under MAC Os and system software section.

  You might also find this useful: find answers and new questions

• Many questions about the HP 50 g

  I just ordered a HP 50 g graphic calculator! I have a few questions about this so hang on tight! What is the USB connector on the calculator? Mini-USB, micro USB, or is it a connector owner, "custom". Then, it would be possible to connect a keyboard to the HP 50 g by using the USB Port? Is there a program that would make this possible? (I doubt it would work if you plug it..) I have a Mini-USB to female USB 2.0 connector. So I could just plug the keyboard right, provided that the port on the calculator is a Mini-USB Port. If this is not so that I could use my female to female USB adaptor to connect the keyboard.

  Thanks for your help,

  Zekelegge

  Hi!, zekelegge:

  Welcome to Forum!

  The only printer I use, 50G calculators, 48GII, 39GS and 17BII +, as well as many former models, such as the 48 s/SX/G/G + / GX, 38 G, 39 G, 42, 41 C/CV/CX and 28 C/S, is the infrared printer HP 82240 b. If you can use the emulator HP50G, on the PC, the simulator of the printer, you can download, since... http://www.HPCalc.org/details.php?id=7386

  The printer... HP 82240 B

  

  The cable series...

  

  The description... http://www.allenwan.com/hpcalcserialcable/

  The original cable...

  

• Question about warranty after exchanges of RAM on Satellite module series

  Hello together,

  I have a question about the warranty. My laptop is 5 months old and now I want to improve it with more RAM. I want to do it myself, and now I'm wondering if the warranty will be getting hurt.
  Thanks in advance for your answers.

  Concerning

  TiG3r

  For new models of laptops the RAM upgrade described in s operating manuals. It is public act and it shows the owner of the notebook how do RAM upgrade only.

  If Toshiba offers something like this he won't have the negative influence of valid warranty.
  Buy a compatible module and RAM upgrade.

  Bye and good luck!

• A few quick questions about the Satellite P300 - 18 M

  Hello

  I am about to order a Satellite P300 - 18 M and have just a few questions about this:

  (Although these may apply for other similar Satellite/Equium P300.)

  Is the touchpad made by / to use the Alps or Synaptics driver?

  It has the Wireless N network card, is the map made by Intel or Realtec?

  And also, someone has experience with face recognition software to connect?

  If so, does it take a lot of time to initalise?

  Thanks in advance,
  Jack

  Hello

  The P300 - 18M belongs to the PSPCCE series.
  It uses the two touchpad drivers. Synaptics & Alps Electric
  There is an Intel 802.11agn minicards WLan installed

  The face recognition is a nice tool but local to be illuminated and you must take your face the right of the post sometimes it of not very easy

  But if you face is recognized correctly that the connection should work properly

  See you soon

• Questions about nb200

  I recently bought a mini nb200 with windows 7 and I have a few questions about it. How can you set up your email, I was willing to put up with Outlook Express, but I don't know if I can. Also, is there a way to get a paper copy of the user manual?

  You can download and install a new e-mail program when you download Windows Live via Microsoft Update. You can select the components of Windows Live, you want to include by checking a box for each you want. I installed all the. Or you can use Outlook, if you have Microsoft Office and you want to install it.