Usable for 10 resistors
Posted 31 May 2013 - 12:19 PM
Posted 31 May 2013 - 12:54 PM
We used a 6 V battery and a Labjack EI-1040 Dual Instrument Amplifier.
To measure from a bridge circuit with the U12, you need to provide excitation for the bridge and you need an instrumentation amplifier. So what are you using for excitation and amplification?
Posted 31 May 2013 - 02:58 PM
Posted 03 June 2013 - 05:58 AM
How fast do you need to scan the 10 bridge signals?
What are you using for software?
The speed does not really matter. we can wait every load level until the 10 resistors have been measured so we can have an idea about the strains for the whole wing at one particular time. Do you think that connecting 10 gages at a time on the U12 is feasible?
For the software, we use the LJstream V1.05 and VersaPro! I will look further for more details.
Posted 03 June 2013 - 10:09 AM
You then need software to read 6 inputs on 1 U12 and 4 inputs on the other U12. You can write your own program in about any language, or use DAQFactory:
An alternate route, would be 1 U3-LV, 1 CB15, and 5 LJTick-InAmps. You could then use LJLogUD to collect the 10 channels of data.
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