Numeric Operations with transfer functions

[shank]

Dear Friends,
       I am relatively new to labview and i am using labview 8.2. I wanted to know that how can i perform a numeric operation between an array and a transfer function. I am attaching a sample of what I have been able to do, but the output is in the waveform pattern. Can anyone suggest a better way to perform this operations. Any suggestions will be of great help.

Thank you.
Shashank

[GerdW]

Hi Shashank,

could you attach your sample?

[shank]

sorry sir, i dont have these versions of lbaview. and also i dont have windows xp. is there anything else that i can do with it.

[shank]

this is my sample.

[GerdW]

Hi Shashank,

you seem to have LV8.2...

I changed your vi a little bit, but still I don't know what exactly you want to do...

[shank]

thanks a lot for your generous help. i will try and implement this solution. also the way i am getting delay, is it right. also is there a way to see the delay on graph. example if we give an inout signal sine wave we shud see the delay in the signal after applyin it to  a transfer function with a specific delay. i hope u are getting wat i want to say.

[Barp]

Shank,

What is the operation that you are trying to do with Control Design? It is not very clear what the fnal goal. There are several ways to do things with LabVIEW that would be more suited for your final problem.

Just to let you know, as of LabVIEW 8.5, we introduced basic operations of models (that can be in State-Space, Transfer Function and ZPK). So, you can multiply a scalar value by a Transfer Functions model, giving a transfer function scaled back. Before, you would need to do operations with that.

Additional to this, also consider using Simulation Module 8.2 for changing the paramters on the fly. I noticed that you are trying to use the Simulation Signal Express VI and try to simulate the transfer function on the fly. This is EXACTLY what you can do with Simulation Module, but in a more natural way. If you have LabVIEW 8.5, the Control Design Toolkit and the Simulation Module are part of the same product called Control Design and Simulation Module 8.5.

Hope this helps. Let me know if I can of more assistance!

[shank]

           Thank you sir for your reply and time. The thing is that i am trying to implement a model in Labview. It is a Cardiovascualr Model. In this i have to multiply a waveform (static) reading it from XL sheets. Then this waveform undergoes this calculations like multiplication and addition. Also it has a transfer function to be multiplied with. A delay also has to be inserted. If you want I can attach the block diagram for it so that you can get a better view about it. and then after all this calculations i get a final value of this same input, changed ofcourse.
           I hope i gave an idea atleast of what I want. If you can help me with this will be of great help. I will be highly obliged.

Thanking you,
Shashank.

[shank]

also can anyone tell me how to rate an answer?

[GerdW]

Hi shank,

that's easy: in right lower corner of the message are buttons (numbered from 1 to 5) to click.
But: the rating system changed...