SR-71Habu
lvl.2
Flight distance : 191125 ft
United States
Offline
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Ex Machina Posted at 2017-2-12 20:41
I have four titanium skull plates and was worried about the same thing, turns out not to be a problem at all.
DJI-Ken does say to leave your keys behind, so when I'm prompted to calibrate the compass, I set the Mavic down where I plan to launch, walk a few yards away and set down my controller and keychain, or any other metal I might have, start calibration, and walk back to the drone to complete the calibration steps. I don't bother taking off my watch and have a belt with lots of metal rivets that doesn't seem to be a problem, either.
Prolly being a bit nitpicky here Ex, but I can't tell if Ken clarified the issue with your plates (must be a story there...). He said it isn't a problem at all because your plates are titanium which is non-ferrous, not because metal in the body might not ever be a problem.
In fact his paranoia (perhaps justified) about a keychain would be a concern since the human body is not very effective shielding for magnetic fields. Depending on the mass and location of the devices in the body I would guesstimate that a relatively small chunk of metal like a key chain that needs to be 4-5 ft or more away from the sensors would be *less* magnetically attractive than chunks of ferrous metal in the body.
There is not any type of body tissue/bone that shields the effects of electro magnetism very much and it seems from what I read around here that these sensors are perceived as super finicky (beyond what I believe to be true, FWIW), so I'd say to the OP to exercise caution after a calibration and note anything quirky. Or just find a volunteer to compass dance for 30 secs. |
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