Hi!
I'm really new to using the UM7 sensor, and I'm experiencing an issue with it. Using the sensor’s acceleration measurements, I computed the magnitude of the total acceleration:
sqrt(a_x^2 + a_y^2 + a_z^2)
When the sensor is stationary at 0° roll, 0° pitch, 0° yaw, the result is approximately 9.81 m/s². The problem arises when I start rotating the IMU. For example:
- At 0° roll, 0° pitch, 75° yaw, the magnitude becomes 9.84 m/s².
- At 180° roll, 0° pitch, 0° yaw, it reaches 10 m/s² approximately.
- At 90° roll, 0° pitch, 0° yaw, it measures 9.9 m/s².
- In some configurations, it drops to 9.76 m/s².
In all of these experiments, the IMU was completely stationary.
I don't really understand why this happens. I need to remove the gravity component from the IMU’s measurements to obtain the actual acceleration it is experiencing. Any ideas would be greatly appreciated!
Hi!
I'm really new to using the UM7 sensor, and I'm experiencing an issue with it. Using the sensor’s acceleration measurements, I computed the magnitude of the total acceleration:
sqrt(a_x^2 + a_y^2 + a_z^2)
When the sensor is stationary at 0° roll, 0° pitch, 0° yaw, the result is approximately 9.81 m/s². The problem arises when I start rotating the IMU. For example:
In all of these experiments, the IMU was completely stationary.
I don't really understand why this happens. I need to remove the gravity component from the IMU’s measurements to obtain the actual acceleration it is experiencing. Any ideas would be greatly appreciated!