how to integrate Lock-in-amplifier with SMU 2400 and lakeshore temperature controller 331.

[Aryaniisc]

i am very new to labview, i have make a labview program to measure resistance with temperature with SMU 2400 and lakeshore temperature controller 331 but we want to integrate lock-in-amplifier for accurate measurement

[ZYOng]

Start by communicating with each instrument separately. You can search for third-party driver at Instrument Driver Network (IDNet)

Here are the links for your instruments. Download and extract the content to C:\Program Files (x86)\National Instruments\LabVIEW 20xx\instr.lib. The examples are provided.

Keithley 24XX Meter - IEEE 488.2 (GPIB), Serial Driver for LabVIEW

Lake Shore Cryotronics 331 Controller - IEEE 488.2 (GPIB), Serial Driver for LabVIEW

[Aryaniisc]

Thank you for your reply.

I have already installed all the drivers. I have also made a LabVIEW program to integrate SMU 2400 with the lakeshore temperature controller. The only problem is our data is not coming well. It has a lot of noise, so we want to integrate Lock-in-amplifier to get smooth and noise-free data.

[cstorey]

Why would you need a lockin?  What are you doing that requires the lockin?

The Keithley 2400 SMU has lots of settings.  Are you making use of these?  

Describe what you are measuring and post your actual code if you want help.  

Craig