Strain gauge set-up with NI 9237

[Andy S]

Hi all,

I require a bit of help with my strain gauge application. I am measuring torsion on solid circular bars and will be using a half bridge set up with two active gauges to aquire my data. I will be using NI9237 and plan to connect up my gauges to this via NI9949 screw terminal adaptors but I am unsure of what wires to connect up to each pin. Also if there is anything else that you think might help please let me know!

Thanks in advance,

Andy

[Mark_SAI]

Hi Andy,

Use the Connection Diagram tool to view the required signal connections between your sensor and connector block. You can view this by placing a DAQ assistant, configuring it for a strain measurement using your 9237, then clicking on the "Connection Diagram" tab.

You'll get something like this:

[Mark_SAI]

Also useful link:

http://zone.ni.com/devzone/cda/tut/p/id/5396

[Andy S]

Thanks for the help guys. I have worked it out now! Another thing, is it necessary to connect up Shunt Calibration with Remote sensing as well? The NI9237 manual says only AL+ EX+ EX- RS+ and RS- are required for half bridge but the diagram includes SC connections as well.

Thanks again!

Andy