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Strain measurement NI9237



I am struggling to understand the connections I need to make to the NI9237's RJ50 sockets


I have two 120 ohm strain gauges each gauge have two wires, I am intending to measure hoop

stress in a thin walled pressure vessel with one active gauge and the other for temperature

compensation in a half bridge configuration.


Do I need to connect the bonded gauge to Channel 0 pin 6 EX+ and pin 2 AI+

then the unbonded gauge to Channel 1 pin 7 EX- and pin 2 AI+


Sorry if the is an obvious question.


Thanks In advance





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Hi Mick,


I would suggest that you start by having a look at the following KB article:


It talks about the different configurations you can connect the strain gauge in, dependent on the strain gauge.


The following article then talks about how you can start to take measurements:


I hope this helps.


Kind Regards,


Matthew Fergusson

Applications Engineer UK


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Thank you very much for both replies, I think I now know what I need to do..






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