Timeline for Minimum sample frequency of IMU accelerometer and gyroscope
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 3, 2019 at 0:48 | comment | added | Eric | The rate wasn't set in stone, I chose it because it was close to our motion capture system rate and other literature has used it. But for an exam coming up it might be a question like, "how do you know that this frequency can collect all the necessary data?" | |
| Sep 2, 2019 at 20:39 | comment | added | user28715 | If the rate is writen-in-stone, it was very likely set by NASA in the mid 60s. | |
| Sep 2, 2019 at 17:35 | comment | added | Maxtron | @Eric High sampling rates come at a cost. This includes fast draining of the Li-ion battery. Another reason why wireless modes use low sampling rate. | |
| Sep 2, 2019 at 17:32 | comment | added | Marcus Müller | @Maxtron seeing that bluetooth can easily do Mb/s of data, there's no direct causation between wireless or not and sampling rate, I'd say. The amount of data that even a 6-axis 8bit device would do, 48 kB/s=284 kb/s, is really tiny for modern wireless links. | |
| Sep 2, 2019 at 17:21 | answer | added | Ben | timeline score: 2 | |
| Sep 2, 2019 at 17:09 | comment | added | Maxtron | @Eric It should be easy to compute right. You have six channels (three-axis accelerometer and three-axis gyroscope). For each channel, you have the header, data, and check sum information. Compute the number of bits per second and multiply with six. Then, show that the total rate is less than bluetooth max capacity. I hope this helps. | |
| Sep 2, 2019 at 16:28 | answer | added | Peter K.♦ | timeline score: 1 | |
| Sep 2, 2019 at 16:20 | comment | added | Eric | It is a wireless bluetooth sensor, I am just wondering because I might have to justify it for an exam | |
| Sep 2, 2019 at 16:08 | comment | added | Maxtron | It depends on your mode of operation. If it is bluetooth, 125 Hz is a reasonable sampling rate. However, if it is wired, it can go all the way up to 1000 Hz. | |
| Sep 2, 2019 at 15:35 | review | Close votes | |||
| Sep 2, 2019 at 16:29 | |||||
| Sep 2, 2019 at 15:19 | comment | added | Marcus Müller | It's probably "high enough" and "commonly used". Don't expect a justification. | |
| Sep 2, 2019 at 14:51 | history | asked | Eric | CC BY-SA 4.0 |