Strange "blips" when using FOB

[farshizzo]

These glitches are most likely caused by your tracking system. Can you provide me with the raw data from the tracker instead of a video? I'm guessing that the magnetic field is being inverted for a frame, and this would be easy to tell if I have the actual numbers coming from the tracker.

[theuberk]

I'm not going to be able to test the hardware until thursday and I don't have the raw data from when the video was taken. I can get this data for you on thursday. If this is the source of the problem, what would be causing this inversion and do you know of any solutions?

[farshizzo]

Are the sensors far away from the ERT when the glitches happen? Keep in mind that the Flock of Birds tracker and other electromagnetic trackers become very jittery and unstable as you move the sensor far from the transmitter. If you need accurate measurements at large distances then you should look into optical tracking systems.

[theuberk]

Distance doesn't seem to be a factor in this particular case. Other strange things do happen when the sensor is far from the ERT but these glitches seem to happen even if the sensor is fairly close to the transmitter.

[theuberk]

Hi,

I just wanted to know if there is some sort of quick cure for the field being inverted. These blips and other strange things that seem like they are coming from the same source as these blips are happening periodically. We need to minimize this as much as possible as it is resulting in skewed data being collected. So, is there anything we can do about this without having to move to optical tracking (not in our budget)?