Comment by the__alchemist
8 hours ago
> You could integrate acceleration to get speed - the flight is short enough to make compounding errors easy to ignore.
False, given how noisy MEMS IMUs are, and the accuracy required. Even Ring Laser Gyros drift quickly.
I did a bit of googling and this was the first result:
https://www.h4-lab.com/store/p/qmu102
This sensor has a 16G limit, which is well above what an amateur rocket cold and the compounding velocity error at 10G would be something like 0.0002 (m/s)/s. Which is way more than good enough, at least for short flights measured in minutes max.