Two lock-in amplifier in one VI

[newman814]

Hi Everyone

I found the lock-in start up kit on NI website. 

What I am trying to do is implenting two lock-in amplifiers in the same VI. But it seems two lock-in will crosstalk and affect to each other. 

Is there any way to let two lock-in amplifiers function independently?

I had  tried to rename all the subvi into 2 different sets and in different folders but it did not work.

Thanks,

[Door-C]

newman814,

What do you mean it did not work? Are you seeing some kind of error? Could you elaborate?

[newman814]

Hi

Thanks for your reply. 

I've rewrite my VI into a simpler version.

What I have now is a Lockin amplifier in that VI. But what I need is to have another set of lockin amplifier which run in different reference signal.

That is, another same thing in the same VI.

[HeroOfHyrule]

Is there a problem with copying the while loop and pasting it below? You can run both of the loops at the same time. Do you need to synchronize them? 

[daydayzhq]

Hi all,

who could hellp me to change these VI version to labview 2010.

thanks

Henry

[MCOTO]

Hello Henry,

Please refer to the Version Conversion Forum.

http://forums.ni.com/t5/Version-Conversion/bd-p/VersionConversion

Regards,

MCOTO

[alkazaa]

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@HeroOfHyrule wrote:

Is there a problem with copying the while loop and pasting it below? You can run both of the loops at the same time. Do you need to synchronize them? 

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Hi Rob,

I'm also trying to get a software lock-in running, starting with the same NI example which newman814 is using. However, that example does not seem to work correctly. It should e.g. deliver an output which depends on relative phase between reference signal and signal to be measured. But phase setting has no effect at all, see the attached VI.

But maybe I am missing something.

Is there still someone at NI who knows about details of its implementation and could provide some tips?

-Franz