Timeline for How Precise can I get with Accelerometer and Gyroscope
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Oct 15, 2011 at 13:35 | comment | added | RasmusWL | thanks for the suggestion, but that wouldn't work for me. I've figured out it's not possible, so thanks for enlightening me :) | |
| Oct 14, 2011 at 17:45 | comment | added | tallganglyguy | I don't know what your application is or what your limitations are, but here is a suggestion. Perhaps if you had an articulating arm be your point of reference that would get you the precision you need. Something like the faro arm. Build an arm with encoders in each joint. Then it just becomes math! Obviously you wouldn't need to be as precise as they are, but it's an idea on how to get to where you want to be. | |
| Oct 14, 2011 at 12:03 | vote | accept | RasmusWL | ||
| Oct 14, 2011 at 12:03 | comment | added | RasmusWL | Okay, sounds like you're right. This isn't going to work. But thanks for all the help! | |
| Oct 13, 2011 at 19:58 | comment | added | tallganglyguy | Looking at what you have said you're trying to achieve it sounds like an inertial solution is the wrong technology to solve your problem. Unfortunately those levels of performance just aren't available to the general public. This datasheet has a list of position errors listed for different GPS outages (essentially your application). This IMU cost 70k Euro, and after 5 minutes it is out by 40cm. | |
| Oct 12, 2011 at 16:08 | comment | added | RasmusWL | Great and informative answer :) Basically I need to have very precise measurement all the time (we're talking a millimeter here), the movement isn't very big (max 1 meter), so if the position is off by 10 cm, it can't really be used. --- I don't know if you're the guy to ask about magnetic tracker, so I'll post the comment on Rocketmagnets post :) | |
| Oct 12, 2011 at 3:10 | history | edited | tallganglyguy | CC BY-SA 3.0 |
Added information about how to determine error margins based on information in data sheets.
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| Oct 12, 2011 at 2:43 | history | answered | tallganglyguy | CC BY-SA 3.0 |