Scientific equation in Labview

Hi all,
I have an equation which i have to code it in Labvew how can i do this. It includes functions etc .Can anybody do this VI for me.
Regards
Gita
Message Edited by AutoTEC on 10-18-2008 12:12 AM
Attachments:
Mathe.PNG ‏5 KB

Hi Gita,
you want to use LabView as a calculator? Ever tried to calc to +infinity using your small handheld calculator???
Either use some MathCad/Maple/similar software, that is made to work with such formulas or try to solve that equation on a sheet of paper (as you surely learned in some classes of math )...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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Implementing Differential Equations using Labview fpga modules on PXI-7811R

Dear,
I am working on implementing dynamic systems modeled ordinary differential equations on PXI-7811R FPGA using labview FPGA. Is there any body who can help me how to implement differential equation on PXI devices uding Labview FPGA, please? Is there any integrator in Labview FPGA, module. I used Discrete Integerator in LAbview FPGA module in Maths palette, but i hesistated if it really works . I really appreciate your help,
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Thank you for posting on the discussion forum.
You can solve differential equations using LabVIEW FPGA but you may run into some significant difficulties in doing so. If you are not tied to using FPGA, you could try using LabVIEW real-time, which may make things much easier. But if you would like to stick with FPGA, see the link below for a list of examples that may be helpful:
http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/ssnav:ipn/q/differential%20e...
Below is a link that you can review to better understand the functionality of the discrete integrator should you choose to go that route:
http://zone.ni.com/reference/en-XX/help/371599B-01/lvfpga/discrete_normalized_integrator/
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Solved!
Go to Solution.

Rotate, And, Not equal to zero
Message Edited by Ravens Fan on 08-10-2009 09:36 PM
Attachments:
Example_VI_BD.png ‏2 KB

Can labview solve this equation?

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If you are actually trying to solve it recursively, then Newton's Method should work.
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Message Edited by rpursley8 on 11-21-2005 12:09 PM
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How do I solve simultaneous equation with 3 unknowns ?

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Controlling water level of spherical tank using labview.

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plant.vi ‏31 KB
integration3.vi ‏18 KB

I've never seen this approach before and don't really know what you're doing
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Control wrote in message
news:[email protected]..
> Hi, I'm trying to control the water level of a spherical tank model
> using PID in labview. The model is a non-linear equation a
s follows:
> Qi(t-L)-Qo=pi*R^2(1-(R-y)^2/R^2)dy/dt
> where Qi=inlet flow
> Qo=Outlet flow
> R=tank radius
> y=height of water
> t=time
> In order to get y, i have shifted the right hand side to the left and
> integrating it. However, i can't implement the integration of this
> non-linear equation in labview. Pls advise. Thank you.
> Attached are the files that i've tried.

Differential Equations - Data from file

Hi
I am trying to solve a differential equation in LabVIEW. I have tried to modify an example from NI help and attached my VI to this email.
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Thanks
Message Edited by scottcolston on 02-27-2008 04:08 AM
Message Edited by Support on 02-28-2008 08:40 AM

Hi Ravi,
I think you need to use this.
DATA:
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Server Path'.
CLEAR itab. REFRESH itab.
OPEN DATASET dsn FOR INPUT IN BINARY MODE.
DO.
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ENDDO.
CLOSE DATASET dsn.
If you mean application server by network drive.
Thanks,
Sai
Edited by: Sai Krishna Kowluri on Dec 3, 2008 11:13 AM

Solving a system of nonlinear equations

Hey guys,
I am currently trying to solve a set of nonlinear equations in LabView with the help of MathScript and MATLAB code. I'm trying to create a working code since hours, but I haven't achieved this goal yet.
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Regards,
fuchrist
Solved!
Go to Solution.

Hi,
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Attachments:
myfun.zip ‏1 KB

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How can i find a tutorial to simulate analog circuits?

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I am currently in the process of using LabView to replace another user interface for a scientific instrument.
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~Going Bananas
Solved!
Go to Solution.

New replies now in gray.
CodeMunkee wrote:
1. If you keep giving me good advice like this, I'll be tempted to change the background to Baltimore prison purple.
I'll ignore this statement.
2. The buffer now lives outside the loop. I understand clearly. Part of the problem might be my instrument - when I cycle power the 19 digit number that was 'echoed' disappears. Forget about that display stuff, it works properly - I accidentally removed the time delay when editing the vi. But you do bring up an interesting point...
Without the delay, the loop ran much faster. If the bytes weren't at the port, the read statement would have returned nothing when it read zero bytes, thus blanking out the indicator rather quickly.
Yes, Hexadecimal display shows 04 to indicate the end of the 25-byte data sample.
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While this isn't a common occurence, it does happen. How can I prevent this from ever happening?
Since you know each commands ends with a hex 04 (ASCII character for EOT), you could enable the termination character when you configure the serial port. Set the termination character to be 4. Then when you execute the VISA read, read a large number of bytes such as 25 or more. The read will terminate at either the timeout, the requested number of bytes, or when the termination character is read. With this setup, you could eliminate the wait statement and also not request the number of bytes as the port. The VISA read will control the pacing of the loop. Any extra bytes after the termination character are part of the next frame of data and will wait around until the next time you read the VISA port.
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Any ideas? I think I've tried to put the toggle buttons outside the loop before, but then could only toggle once before the loop took over. Ideally, these toggles would be available at any time while the data is streaming, so therefore inside the loop?
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Message Edited by Ravens Fan on 01-13-2009 03:55 PM

Thresholding an image in order to determine areas

Hey everyone,
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Thanks in advance for the help.
Attachments:
ImageCaptureVI.vi ‏61 KB
TestThesholdingVI.vi ‏22 KB

Hello,
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BEFORE:
AFTER:
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Hope this helps.
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K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

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OriolesFan wrote:
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