03-24-2025 03:40 PM
Hi all,
I'm running into a really weird problem trying to sample and calibrate data from an ATI F/T sensor with a cRIO. No matter how I press on or torque the sensor, the Z- or Z+ channels register. I have followed ATI's guide of sampling 12 signals (6 values and 6 references), subtracting the references from the values, and multiplying the calibration matrix specific to my sensor by the values.
I have checked pin configurations, unit tested all parts of my code, and tried manually calculating results to check my sanity. I was thinking it might be a pin configuration issue, but all my references are around the same value and if the pins were switched, why would Z- be registered all the time? I am extremely lost on what to do.
I have reached out to ATI and they suggested that I check my pins (checked and rechecked), use their example software (all configured for a DAQ and not a cRIO), and try their demo software (again not compatible with a cRIO). I was wondering if it's my LabView code and not the physical device setup that is the problem?
Problem Details:
Setup Information:
03-25-2025 05:13 PM
If you want to eliminate any problem with your code, can you look at the raw AI values on the NI-9205 in NI-MAX. Or do you have the capability to measure the voltages directly without having them connected to the NI-9205. The only other quick thing I would suggest is making sure you are using the correct wiring, differential or single-ended, for the amplifier output and that the grounding is all correct between the power of the F/T and its amplifier and the cRIO. There is a good guide to field wiring if that is something you are not familiar with:
https://www.ni.com/en/shop/data-acquisition/measurement-fundamentals/field-wiring-and-noise-consider...