Lock-In-Amplifier SR830

[Subho26]

the problem is which one is the specific code for lock-in amplification purpose, i mean there will be input signal frequency, amplitude and noise amplitude after lock in process i should get the retreived signal being freed from the noise as the output, all of them will be implemented by the hardware, for that visa and gpib drivers are essential. i have tried to download some of them, but it is loaded continuously, this zip files contains some vi's that i try to download. i have also the attached the interface on my pc along with this zip file, that i am currently facing, please help me with this. 

with regards,

Subham

[Subho26]

the problem is which one is the specific code for lock-in amplification purpose, i mean there will be input signal frequency, amplitude and noise amplitude after lock in process i should get the retreived signal being freed from the noise as the output, all of them will be implemented by the hardware, for that visa and gpib drivers are essential. i have tried to download some of them, but it is loaded continuously, this zip files contains some vi's that i try to download. i have also the attached the interface on my pc along with this zip file, that i am currently facing, please help me with this. 

with regards,

Subham

[GerdW]

Hi Subho,

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@Subho26 wrote:

i have tried to download some of them, but it is loaded continuously, this zip files contains some vi's that i try to download. i have also the attached the interface on my pc along with this zip file, that i am currently facing, please help me with this. 

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The "missing" subVI is located within the LLB, you just need to browse to it when LabVIEW starts to search for it!

Anyway: you downloaded a very (VERY) old example for that device. It is based on the GPIB functions, which only work for NI GPIB adapters.

You should search for other (more recent) examples that use VISA functions instead!

I made the effort to pull the VIs from this LLB, and I also removed the stacked sequences inside the VIs. See the attachment…

[Subho26]

thank you very much, but which one is the actual code for my operation, can you help me to find that particular labview code among the vi's embedded inside the zip file that you have recently sent me. i have sent the png for the pc interface.

[GerdW]

Hi Subho,

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@Subho26 wrote:

which one is the actual code for my operation,

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There are some VIs labeled as "Example" so you can look at their code and learn how to handle the SR830.

On "my operation": most often you will need to program a VI on your own to handle all the specific requirements of "your operation" correctly. That's why there are example VIs (and programming manuals) so you can develop your own code…

I repeat: even though I partly cleaned up the VIs from that LLB doesn't mean I recommend to use them. They are old and use an outdated GPIB API!