Timeline for Will a magnetometer give distorted values if there is a magnet near?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 16, 2015 at 9:17 | vote | accept | kontur | ||
| Feb 6, 2015 at 14:37 | comment | added | Russell McMahon | As MAC notes - saturation MAY occur. | |
| Feb 6, 2015 at 14:36 | comment | added | Russell McMahon | @Kontur I wasn't specifically saying that but it may be true. I do not know what magnetometer you are referring to or the application or general environment - but as you note - you may be able to make use of the vector sum of magnet + desired field. Whether this is usable may depend on relative strength and field directions. If the desired field is the earth's field then relative X Y Z angles will probably be affected equally. If it was from a low power local source then the x y z vector sums may now be at new and different angles and interpretation my be difficult. | |
| Feb 6, 2015 at 10:15 | comment | added | kontur | So are you saying if the magnet stays in the same place in relation to the magnetometer, the reading with be quantitatively different, but qualitatively usable, as it always reflects a relative change? If this is so, presumably moving the magnet's position would then change the magnet field distortion and consequently distort the readings entirely? | |
| Feb 6, 2015 at 9:37 | history | answered | Russell McMahon | CC BY-SA 3.0 |