Accelerometer Channels Can't Detect Gravity

Updated Apr 6, 2018

Reported In

Hardware

  • NI-9233

Driver

  • NI-DAQmx

Issue Details

My Accelerometer shows voltages close to zero on all three channels. Even when I rotate the device, I don't see the gravitational force appearing on different channels. It otherwise still appears to give good measurements when I move it. 

Solution

Unusual reading behavior like this may be due to incorrect settings on the DAQmx task. Verify the following settings:
  1. Check that the sensitivity in DAQmx matches your measurement device
  2. Check the excitation settings on the acceleration task, verify that the device is receiving sufficient excitation current.
  3. Verify that the grounding settings match the device you are using

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