Is it possible to record measurements from a transimpedance amplifier to a computer using labview?

[solarfacility_user]

Hello, I am using a transimpedance photocurrent amplifier from Thorlabs (PDA200C). Is it possible to record its measurements to a computer using labview?

[GerdW]

Hi user,

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@solarfacility_user wrote:

Hello, I am using a transimpedance photocurrent amplifier from Thorlabs (PDA200C). Is it possible to record its measurements to a computer using labview?

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I didn't found a manual, but the website mentions an "Analog Control Output" (±10V). When that device outputs a signal using that output then you could use any kind of DAQ device to read that voltage signal…

[AndersSekanina]

It seems as there is an analog out from the PDA200C:

You can connect that to an AI module (cDAQ, cRIO, USB_DAQ or other), and thereby get the measurements into LabVIEW. 

I can´t see there is any other connection (Serial, USB, Ethernet or other).

[solarfacility_user]

I've looked at the different modules, but I cannot find the one for optical power. How can I get labview to record the measured optical power?

[Henrik_Volkers]

Basically the DAQ will read the output voltage of the TIA.

So  P_opt -> I_PD -> U_TIA  -> P_opt*

every arrow ->  is a unit conversion ( in best case linear 😉  , so for the PD current into voltage (TIA)

to get the P_opt*  you need the probably wavelength depending conversion factor of the PD and the conversion factor of the TIA

and multiply the measured voltage with the product of the invers conversion factors to get P_opt*

You can do this scaling  in your Labview program or configure a DAQ task in NI-MAX with a costom scaling.