Change the peak of the sine wave in a time interval

Similar Questions

• Is it possible to change the sine wave 'exit' a simulation device?

  I work on a LV collection and analysis VI in LabView that interfaces with a CDAQ-9178 loaded with 9215 modules/a. chassis.  In the Measurement & Automation Explorer, I was able to set up simulated devices that work with my code and I get the sinewave / 5 (?) standard signal noise %.

  However, to really test my application, I need a slightly different sine wave with high frequency (1-10 Hz vs the)<1hz sent="" by="" the="" simulated="" device). ="" is="" there="" anyway="" to="" modify="" or="" get="" the="" simulated="" device="" to="" output="" a="" different="" wave? ="" if="" not, ="" are="" there="" any="" other="" simple="" ways="" to="" simulate="" the="" device? ="" i="" could="" write="" another="" vi="" to="" send="" out="" a="" sinewave="" but="" was="" looking="" for="" a="" more="" obvious="" or="" simpler="" solution="">

  Thank you

  # You need to do is call an of the generating functions of waveform instead of the DAQmx Read. Place inside a case, the declaration or the conditional structure disable is fairly simple.

• The sine wave generation

  Hi guys,.

  Sorry I have a very simple problem. But it seems that I am too new to LabVIEW... and / or have no idea. I've tried a few things but nothing worked propperly.

  I need to generate a sine wave with the following of the flexible parameters.

  f = 0.02 Hz... 10 Hz

  Range = 0... 500

  Offset of 1500

  I would like to see a cursor moving and get off after the sine wave. The parameters should be changed at any time that the generation of the sine wave inside a While loop. If that would work I intend to integrate that in the code I wrote for an Arduino, Makerhub, slavery... The values already referring...

  I tried allmost all the generation of singnal live that I could find but nothing has worked. Calendar completely proven on a waiting insid the while...

  Frequencies below 1 Hz is the fast cursor again... WTF...

  A sinusoidal 1 Hz signal should make the cursor up and down 1 times per second... or am I totally wrong.

  Ah... Perhaps another question. If possible, I want to count the period. For example, after 4 times of the sine wave stop all programs.

  Any help apprechiated... I work with LabVIEW 2012SP1

  First of all, please understand this waveform generating function works. You specify a waveform (amplitude, frequency, etc.) and whenever you call the function, it returns all the wave specified points.

  You can set the number of points with the #s of the info of sampling pole control. As you put the function in a loop, each itaration gives you #s number of points (1000 in your case). You always get a sine wave on your cursor because each iteration returns a different set of 1000 points (this is because of the method, the function calculates the waveform).

  The easiest way to create a sine wave is using the sinus (mathematics, primary, Tigonometric, sine) function. You must use the iteration of the I of the loop counter so that the entry of the sine function. Note that the entry is in radians.

  With a little math, you can easily produce and display a sinusoid at 1 Hz.

  

  Kind regards

  Adam Boros

• Simulate the sine wave using LabVIEW FPGA with NOR-myRIO and display in real time

  Hello

  I'm relatively new to LabVIEW FPGA. I am trying to test (and later apply) controllers high speed on myRIO.

  At this point, I'm trying to simulate the sine wave from 1 to 10 kHz using Sinewave generator VI express. I also intend to display the sine wave on the time real (RT) using FIFO. However, I had a bit of trouble to understaing various synchronization parameters.

  1. how to encode information about the sampling frequency generating sine wave? (The side FPGA vi requires only the frequency of the signal and possibly phase and does not rate update lines)

  2. how to estimate the number of items in a FIFO? (that is, the relationship between the rate of updates to loop (RT), the signal frequency, sampling frequency and the number of items in the FIFO)

  It would be great if we could share a very simple program (side host and target) that did something similar.

  Thank you

  MILIN

  Milot,

  I think the problem is the type of data in your FIFO. Your FIFO is configured to use a data type of I16. The problem is the number, it displays only ever will be-1, 0 or 1. To resolve this problem, you must send the sine wave as a fixed point data and convert it to a double on the side of the RT. This should significantly improve your resolution.

• My laptop goes to "standby mode" much too quickly (Windows 7). How can I change the settings to extend this time?

  original title: sleep mode settings

  My laptop goes to "standby mode" much too quickly (Windows 7). How can I change the settings to extend this time?

  Click on start > Type, sleep > change when the computer sleeps

• Measurement of deformation of the sine wave

  Hi people.

  I'm trying to measure the deformation of the signal coming from a range. Its a sine wave typical that distorts the increase of entry (see attachments). I was initially just to subtract a known since the signal signal to give the difference. The fault point by point is great for this. I also try to figure out the slope over time and rapid changes of the slope would indicate the point. However, point-by-point calculation of the slope gives too much error. Is it possible to generate accurate slopes or y at - it a function that determines if a signal is not sinusoidal?

  Thank you

  Select this option.

  For a quick visual check, you can use vi tone detection and the export of the residual signal, maybe the effective value of the residues is a nice value (THDN)

  Measures of deformation of a periodic signal (in general) often made in the frequency domain and called harmonic distortion. Also, there are screws that can already do it for you.  (SINAD). The level of DHT is usually used.   See signal processing - wfrm measure

  Your traces resemble a calibration of accelerometer ball steel 1 g for me.

• Why my output signal is produced waves triangle when I want the sine waves

  in labview I use the daq assistant to create an output voltage signal to create a sine wave. When I connect it to the opscilloscope, it reads the triangle waves. is someone can you please tell me why this is.

  9172 is a chassis so I need to know the module you use, too. You should try the example:

  %ProgramFiles%\National Instruments\LabVIEW 2012\examples\DAQmx\Analog Output\Voltage - Output.vi continues

  It shows you how to create a waveform to generate, you could use this piece and feed in your daq assistant.

• Fitting of the sine wave

  Hi all

  I'm trying to adapt to a sine wave in a 2d-X table / Y data. I looked into options such as "Extract one tone Info.vi" and vi Lev - Mar, but it seems that they all need data points are sampled uniformly and unfoturnately mine aren't.

  I happen to know the frequency that should help things.  Take a look at the attached picture to see what the data looks like. I can post a CSV of the actual data if it would help clear things upward.

  Any help would be greatly appreciated. Thank you.

  Lev - Mar is probably your best choice.  In the Signal Processing > range of wave shape of packaging are several screws resampling, which one that will accept a bunch of X and Y tables of data and produce output sampled evenly with a specified dt.

  Knowing the frequency support much.  Lev - Mar is not very good to find the frequency so a good initial guess is important.  With a single cycle by FFT VI as your Single from don't work well.  FFT is much happier with at least 5 to 10 cycles and more is better.

  If you know the frequency exactly you could generate a sine and cosine of this frequency and multiply all of the data of these reference signals. Then average the products during a cycle. The d.c. component of the result will be the sine and cosine of the angle of phase shift between the reference signals and the input signal.  Look at trigonometric expressions for the product of the two sinuses.

  Lynn

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  By the time Bing, how do you change the unit of measure for Fahrenheit to Celsius.

  By the time Bing, how do you change the unit of measure for Fahrenheit to Celsius.

  Hello

  Right-click anywhere in the weather app and select change to Celsius in the background options bar.

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• How to change the alignment movieclip point in time...

  I want to change the registration point of my movieclip which is an image at the click of mouse position please suggest me what I can do.

  I use this Actionscript code for which is also made of ZoomIn and zoom to the image movieclip.

  package {}

  import flash.display.Sprite;

  SerializableAttribute public class Main extends Sprite {}

  public var imgW:Number = 0;

  public var imgH:Number = 0;

  public void Main() {}

  the constructor code

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  imgH = IMG_MC.height;

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  IN_BTN.addEventListener (MouseEvent.ROLL_OVER, zoomInOver);

  IN_BTN.addEventListener (MouseEvent.ROLL_OUT, zoomInOut);

  OUT_BTN.addEventListener (MouseEvent.Click, zoomOut);

  OUT_BTN.addEventListener (MouseEvent.ROLL_OVER, zoomOutOver);

  OUT_BTN.addEventListener (MouseEvent.ROLL_OUT, zoomOutOut);

  }

  private void zoomIn(event:MouseEvent):void {}

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  }

  private void zoomInOut(event:MouseEvent):void {}

  IN_BTN.Alpha = 1.0;

  }

  private void zoomOutOver(event:MouseEvent):void {}

  OUT_BTN.Alpha = 0.5;

  }

  private void zoomOutOut(event:MouseEvent):void {}

  OUT_BTN.Alpha = 1.0;

  }

  private void zoomOut(event:MouseEvent):void {}

  If (IMG_MC. Width > imgW) {}

  IMG_MC. Width = IMG_MC.width - (imgW * 0.10);

  IMG_MC. Height = IMG_MC.height - (imgH * 0.10);

  }

  }

  }

  }

  Thank you in advance.

  This is not going to work.  This person is doing nothing more that move a displayobject.

  This can be used where the x's are compared to the chronology of the displayobject:

  function changeRegPtF(dobj:DisplayObjectContainer,x:Number,y:Number):void {}

  var r: Rectangle = dobj.getRect (dobj);

  for (var i: int = 0; i

  dobj.getChildAt (i) .x-= r.x + x;

  dobj.getChildAt (i) there = r.y + y;

  }

  dobj.x += r.x + x;

  dobj.y += r.y + y;

  }

• Change the skin components at run time

  I have a button component that has a single image and a few color filters to change the colors for the different States and I need a way to change the image source when running according to some data. Is this possible? If not, I don't have to really do a custom just component to do this? Because that seems like way too much work for something so simple.

  This custom component that is "the way to a lot of work" probably would have taken much time to create as you spent to create this thread.

  package
  {
       import mx.binding.utils.BindingUtils;
  
       import spark.components.Button;
       import spark.components.Image;
  
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            {
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            [Bindable]
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       }
  }
  

  Now just assign 'imageDisplay' to the id of the image in your skin and your done.

  It wasn't so much work now, was it?

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  Dreamwever CC.  IPower web.

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  Right click on the toolbar.  I am doing this right when the time is displayed.  Choose adjust date/time.  Click on the internet time tab.  Choose a server.  Close.