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Fix SI units as per ROS convention (fixes #165)#171

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MCFurry wants to merge 1 commit intoRoboSense-LiDAR:mainfrom
nobleo:fix/imu-units-in-SI
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Fix SI units as per ROS convention (fixes #165)#171
MCFurry wants to merge 1 commit intoRoboSense-LiDAR:mainfrom
nobleo:fix/imu-units-in-SI

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@MCFurry
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@MCFurry MCFurry commented Apr 8, 2025

As per ROS convention: https://www.ros.org/reps/rep-0145.html#data-reporting
IMU sensor should report linear acceleration in SI units (m/s^2) and not in G.

Issue also mentioned in #165

@alireza-moayyedi
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Hello,

Is there any update on this PR status? It is truly a very important improvement and would be nice to have it merged.

@mjseppa
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mjseppa commented Aug 5, 2025

Might be bit more problematic, the E1 seems to send data in m/s2 where Airy sends in G:s so these would need per model specification or FW update to stay consistent.

@Timple
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Timple commented Feb 10, 2026

But that's problematic in general. If you switch hardware you suddenly get different magnitudes over the same ROS topic...

So I propose we come up with a solution for that instead of ignoring the problem.

How about a parameter which sets the model? Or a parameter which sets the conversion factor?

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4 participants