senseFly eBee X User Manual page 81

Check 2: Inertial sensors
The inertial sensors are used by the autopilot to compute the attitude (i.e. its ori-
entation in space) of the drone. The attitude is displayed by the artificial horizon
in eMotion. To check the inertial sensors, follow these steps:
1. Switch the eBee X on by connecting the battery and connect to eMotion.
2. Put the drone on a flat surface (typically an office floor) and check that the
artificial horizon is level.
3. Take the drone in your hands, tilt the nose up and down and tilt the wings
to the left and right. Make sure that the artificial horizon in eMotion displays
the corresponding orientation.
The artificial horizon should follow smoothly the motion of the eBee X and it should
not drift when the drone is not moving. In case of doubt, take a short video and
follow the instructions in Reporting a problem with your eBee X on page 89 for ad-
vice.
Check 3: Barometric pressure sensor
The barometric pressure sensor is used to measure the altitude from the take-off
spot. To check it, follow these steps:
1. Switch the eBee X on by connecting the battery and connect to eMotion.
2. Move the drone from your feet to above your head (about 2 m (7 ft) altitude
variation).
3. Check the altitude shown in eMotion.
4. Move the drone back down, from above your head to your feet (about -2 m
(-7 ft) altitude variation).
The displayed altitude should follow the drone motion, i.e. if the drone is raised by
2 m (7 ft), the altitude reading should increase by about 2 m (7 ft), then decrease
again when the drone is lowered. When the drone is not moving, the altitude
reading may slowly drift by up to ±10 m (±33 ft).
Flying the eBee X
81