Measuring frequency VirtualBench with LabView

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• temperature measurement with labview on four location using NTC thermistor

  
  

  Hello
  My project is the measure of the temperature of a thermistor on-site 4 difference.
  The measures must be 0 for 100 * C.

  details.
  

  • For the sensor, I must use only NTC thermistor.
  • I have to do an application with Labview.
  • the application must give me the right measure in real time, and it should save the sample in a database.
  • This measure is taken max 20 feet form the pc.
  
  I'm new with this.
  Can someone help me with sensor circuits.
  How can use DAQ with the thermistor.
  Can I use EMANT300 Low-Cost USB DAQ Module 24 bit?

  Please give an idea

• measurement of input frequency TTL with sheet metal entered on a device USB 6363

  Hi all

  Is there a simple LabView vi to measure the frequency of entry TTL cable for the entrance/s, four counters available on a device USB 6363?  I have LabView 2014 FDS installed. I guess using 2 4 meters would be better than 1 for 32-bit resolution, correct?

  Thank you

  John

  Hi jac2015,

  There is an example of a measure of frequency located in LabVIEW help-> find examples-> material-> DAQmx entry and exit-> entrance of counter-> meter - reading pulse width and frequency (continuous) .vi

  Take a look at it and see if that helps. There is also a very useful white paper on considerations to make when measuring frequency, you can find here:

  «Measures of frequency: practical Guide»

  http://www.NI.com/Tutorial/7111/en/

  The main considerations is how often should the signal you want to measure?

  I hope this helps!

• Is DAQ Measurement Computing USB - 1608FS compatible with labview?

  I have DAQ USB-1608FS from Measurement Computing company, and I was trying to see if it is possible to use

  This data acquisition with labview 2012. I tried to download the drivers from their company http://www.mccdaq.com/usb-data-acquisition/USB-1608FS.aspx

  but when I tried to use labview in the DAQmx the DAQ tool is not detect it by LabView. So, if anybody out there knows if this data acquisition

  really can work with labview, please let me know.

  Their driver seems to be ULx http://www.mccdaq.com/daq-software/universal-library-extensions-lv.aspx

  and he said that he supports LabVIEW 2012. I suppose you open a sample and the device does not appear? The device is displayed in the Windows Device Manager? It seems that this driver/device will work, there may be just a few questions it initialize properly on your machine (either with Windows or Measurement Computing software). You must be to open a debate on their forums or call their support help line.

  Good luck! Let us know some of the above and, of course, let us know if find you the solution.

  -gavin

• Get incremental counter/sound to work along side with action with usb-6008 with labview tia sal22

  Get incremental counter/sound to work along the coast with usb-6008 with labview tia sal22

  Hi all

  I can get this vi to work if they are distinct from the vi but I can't join them together

  Example of my error:

  If buffers are set to 0 the freq counter increment works, but no sound
  If the buffers are set to 1 the audio works fine but is not increment the Freq counter
  If the buffers are attached to more 1 clicks and pops are coming

  That's what I'm doing:
  (1) have the frequency of increment of my internal sound card to a certain level as .01hz a second until he gets to 20 000 hz

  (2) use my device usb-6008 daq, which is connected to the same machine to measure the voltage at the same time. (I am in a position very low voltages between 1-5volts)

  (3) output to a worksheet text file which will show you:

  time in seconds, frequency, voltage
  0,400.01,2

  1,400.02,2.5

  2,400.03,1

  I'm a bit confused about how connect the increment and the audio during the measurements with the usb-6008 housing on the same machine
  at the same time and in the same VI.

  Anyone have any ideas?  I'm using labview 8.5
  TIA sal22

  Ha ha you have been deceived by a dynamic thread. Insert a convert from Dynamic Data Express VI (Palette to own: Signal handling screw Express) between the daq read and build the array function. Then it won't work. Now the value in the dynamic data is only converted to a numeric value

• Compatible with labview thermostat

  Goodmorning,

  I'm looking for a thermostat (a device that can measure temperature and humidity) compatible with labview and if possible with a USB connector.

  You never heard / use such a device? I did some research but I can't find it.

  Thank you in advance.

  Thank you! I found another that looks better, but thank you! (Your temperature is smaller)

• Read file test.txt (binary or what?) with LabVIEW 8.6

  Dear friends!

  Please, how to read the attached file (test.txt) with LabVIEW 8.6.  In the same VI, can I convert it in a txt file real with the results presented in the rows and columns? Please, any idea? I need help!

  The rebooting of the trace file is binary.

  Unfortunately, without a description of the real file by developers RELAP format, I don't think you are going to get very far on the decoding of the file.

  You must get directly in contact with the authors RELAP.

  Here's the blurb to the RELAP Manual:

  3.1.4.2 the reboot-Plot file.

  The restart-trace file contains almost all the parameters of calculation

  (Sub fractions, pressures, temperatures, flow rates, etc.) for transient computing together.

  A common misconception is that a parameter must be specified using a minor in change request

  in order to be available in the reboot-trace file when the calculation is complete. Affects a minor change request

  only the printed output. The restart-trace file is accessible repeatedly that the new data should arise. However,.

  during a calculation, the data are written to the reboot-trace only for minor editing file (and the plot point)

  frequency. Once a calculation has been performed, it is not possible to recover data between data

  written to the file to restart-track of the points. Therefore, it is important to choose a minor edit (and plot the point)

  frequency that provides the plot to an interval appropriate to the problem is resolved. In practice,.

  the minor change (and plot point) frequency must be changed during the calculation as the product of the problem

  from one phase to the other. Common points must be selected in the phases of problem where rapid

  RELAP5-3D/2.4

  INEEL-EXT-98-00834-V5 3-18

  setting changes are expected. For the economy, less common points must be selected in the phases

  where the conditions of rest are expected.

  Calculations are usually made using several reboots. (See Volume II for the restart entry

  requirements.) For example, a new problem runs from 0 to 10 seconds. This first part is analyzed and

  Run again from time zero that errors will be corrected. When a managed to 10 seconds has been calculated, a

  restart run is made (for example, 10 to 30 seconds), and so on. RELAP5-3D

  © offers you the possibility of

  change of almost any feature of the model at any point of restart. When changes to the model are incorporated on

  reboot, reboot-plot file reflects those changes only after the decimal point in the calculation, where they have been

  implementation. In the example above, if an injection system is added to the model to 10 seconds, then data

  for added components exists only for the time after 10 seconds. Changes, deletions and additions of model

  are constantly being implemented. If a model change is done in 10 seconds, the revised model remains in

  effect unless other changes are made to subsequent restart points.

  When a calculation is completed, the restart-trace file becomes a valuable document of the

  calculation. If lost, replacement would require reperforming the calculation, usually to the considerable

  loads. At a later date, the file can be accessed and previously compressed data can be obtained as

  necessary to extend the analysis. Therefore, it is recommended that files of restart-track of the important calculations

  be protected safely and permanently.

• The use of Global Mapper SDK with LabVIEW

  I am really new to the use of any SDK with LabVIEW.The basic idea behind this is to trace the lat and long coordinates in global map cutomized app via Labview.I mean I'm labview data acquisition, but I want to display coordinates in global map. For what I do. I don, t have much abt MFC idea too.

  Hello together,

  I found a few resources on the Global Mapper site that you might find useful. They seem to have the same issues as you, and an employee helped answer a few questions.

  Global Mapper software LabVIEW SDK: http://www.globalmapperforum.com/forums/technical-support/8917-global-mapper-sdk-labview-software.ht...

  Global map and LabVIEW: http://www.globalmapperforum.com/forums/sdk/9116-global-mapper-labview.html

  Using LabVIEW, LabWindows/CVI, and Measurement Studio? It is a Council of Measurement Studio, but if you have any questions of LabVIEW, I suggest posting to the Commission of LabVIEW. (http://forums.ni.com/t5/LabVIEW/bd-p/170)

  Kind regards

  Jason D

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  National Instruments

• Raspberry PI connected with usb for laptop with Labview

  Hello

  Please allow me to introduce myself: my name is Bob and I just graduated from the Bachelor of applied science (Physics), in the Netherlands. In education, I followed a course of programming in Labview. However, the course was not very well if I want to start from scratch. (my programming skills are very poor).

  My goal is to learn the basics of programming in Labview. I want to measure the temperature with a probe for example and read this in Labview. I need a data acquisition for this system. I have a raspberry PI in my possession and I was wondering if I could use it to read the temperature from the USB port of my laptop using the PI raspberry. Is this possible? And I have to run some sort of program on the raspberry PI? Or I could better use another device (Arduino maybe?).

  I hope someone could help me to help me get started with Labview. I'm looking forward to learn how to work with Labview and launch a few projects.

  Thanks in advance,

  Bob

  Are you comfortable with writing code on the invoice, pro forma raspberry? This is where you write the code for the acquisition of data and code to send it on the usb as a RS232 serial port. The LabVIEW program would receive all this and it is a very simple program. There is a tool called Linx box that does all this for the arduino.

  https://www.labviewmakerhub.com/doku.php?id=libraries:Linx:start

• What is a low cost switch which can speak with Labview?

  Hello! I apologize if this question is in the wrong forum auxiliary; Let me know a more appropriate and I will happily move it.

  I have a chip test with four aircraft on what I measure through an amplifier to lock. Currently, we can make a measurement, then have to physically move the connection to test the following. I would like to automate this process. I hunted around for a cost relatively low switch that can talk with Labview and allow him to select one of the four signals in turn, but did not have much luck. I was wondering if anyone had recommendations or devices that they had worked with.

  Thanks in advance,

  Dan

  Dan,

  I was looking at using reed relays.  Download those with golden contacts so that they work well to currents microampere.  Use a with digital outputs DAQ card to drive the relay.  Before you buy, check current relay coils and exits Digital DAQ hardware.

  Lynn

• Measures of constraints with the NI 9219

  Hi all

  I join this forum and I need bit of advise on measurement of deformation using NI 9219 with lab view.

  I followed the procedure and settings to configure a virtual channel to strain under global virtual channel of NI DAQ mx.

  I need some clarification on strain gauge measures:

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  I have to really thank and appreciate all of you for taking the time and reading/commneting on my post.

  Kind regards

  Ali

  Hi Engr_tech,

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  I also want to use Labviews built built-in functions somehow.

  Grateful for more help!

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  Shit! It works!

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  Thanks Barp!

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  Hi simpra,.

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  I'm afraid that I can't help hard drive corruption, if that's the case here.  Have you been able to go beyond that?

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  Hello Soonxaf,

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  http://www.NI.com/white-paper/9351/en

  Kind regards