Temperature Regulation with Induction

[joelsview]

Hello Community!

We want to heat an object with induction.

I´m very new to Lab view and I can´t solve this Problem.

We want to regulate the temperature with the Programm. (PID) And get details about the should and is temperature.( In real time) The measurement of the temperature will be made with Agilent 34972A..We want to transfer the data in Excel to compare the sciencetific value afterwords.( we also have NI Modules)

Could you please help us? maybe you have done a similar programm and can upload it?

Thank you very much ! 

Best wishes

Joel

[jay0909]

Hi,

     There are few examples concerning temperature regulation in example finder. Also in Control simulation tool there is a PID controller block and also there are some exampled wrt PID. 

[RTSLVU]

I have to point out that an Agilent 34972A is probably not the best instrument for this type of control. As it can not provide a continuous temperature output but rather has to "scan" at regular intervals.  

[joelsview]

Thank you

you are right

[joelsview]

It’s a real time regulation.

I couldn’t find any..

and the PID regulation must be connected to the daq block.

I think..

do you have some examples for me?

[GerdW]

Hi Joel,

It’s a real time regulation.

No, it's not "realtime", it's "just" a continuous control process…

the PID regulation must be connected to the daq block.

Yes.

You need to read some process values (pv) to compare them with your setpoint (sp). The PID controller will output an output value used to manipulate your DUT (in your case "heating power").

do you have some examples for me?

LabVIEW comes with examples for PID control.

And you should find a device driver (with examples) for your Agilent device…

[jay0909]

Hi,

      The examples works only if you install Control and simulation toolbox form Labview. Just try and get some evaluation version.

[joelsview]

Hi,

I need to explain myself better:

we have a Thermoelement which will be connected to a NI Module:

9215,9223,9411,9237,9219,9401,9215,9263,9239.
And I have : NICRIO 9215, NICRIO 9075, NI PS-15

The NI Module connects to Labview.

and from Labview an output signal to the Induction Machine.

I need the Labview Programm with Is-Temperature and should Temperature. 

And it needs to give the output signal to the induction machine.

The Information needs to be reported by Labview.

My Labview Program is 2017 full version.

[GerdW]

Hi Joel,

I have : NICRIO 9215, NICRIO 9075, NI PS-15

So you should create a VI for your cRIO, reading the temperature for a thermocouple.

The NI9215 is a "simple" voltage measurement module, it may not give accurate results for your thermocouple. It also doesn't provide any help for CJC needed by thermocouples!

Better use a NI9211…

And it needs to give the output signal to the induction machine.

How is this "machine" connected to your cRIO?

Which kind of communication will take place here?

I need the Labview Programm with Is-Temperature and should Temperature. 

The Information needs to be reported by Labview.

Learn LabVIEW. Learn LabVIEW RealTime and cRIO handling.

Then write your VI based on your requirements!