PX4-Autopilot/msg/vehicle_imu.msg
Robin Lilja aa244a098c
Clarification of coordinate systems for sensors_* and vehicle_* messages (#16339)
Changed all 'NED' references to 'FRD'. Also cleaned up mixing of m/s/s and m/s^2 to use the latter. Corrected m/s/s to Pascals. Plus minor typos. Also made some minor cosmetic clean ups.

Co-authored-by: Robin <robin@Robins-MacBook-Pro-Work.local>
Co-authored-by: Mathieu Bresciani <brescianimathieu@gmail.com>
2020-12-15 09:18:05 +01:00

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# IMU readings in SI-unit form.
uint64 timestamp # time since system start (microseconds)
uint64 timestamp_sample
uint32 accel_device_id # Accelerometer unique device ID for the sensor that does not change between power cycles
uint32 gyro_device_id # Gyroscope unique device ID for the sensor that does not change between power cycles
float32[3] delta_angle # delta angle about the FRD body frame XYZ-axis in rad over the integration time frame (delta_angle_dt)
float32[3] delta_velocity # delta velocity in the FRD body frame XYZ-axis in m/s over the integration time frame (delta_velocity_dt)
uint16 delta_angle_dt # integration period in microseconds
uint16 delta_velocity_dt # integration period in microseconds
uint8 CLIPPING_X = 1
uint8 CLIPPING_Y = 2
uint8 CLIPPING_Z = 4
uint8 delta_velocity_clipping # bitfield indicating if there was any accelerometer clipping (per axis) during the integration time frame
uint8 calibration_count # Calibration changed counter. Monotonically increases whenever calibration changes.