Datasheet

Bosch Sensortec
| BMI088 Data sheet
43 |
48
Modifications reserved | Data subject to change without notice
Document number: BST-BMI088-DS001-1
3
Revision_1.3_05201
8
8.2 Sensing axes orientation
If the sensor is accelerated and/or rotated in the indicated directions, the corresponding channels of the
device will deliver a positive acceleration and/or yaw rate signal (dynamic acceleration). If the sensor is
at rest without any rotation and the force of gravity is acting contrary to the indicated directions, the
output of the corresponding acceleration channel will be positive and the corresponding gyroscope
channel will be “zero” (static acceleration).
Example: If the sensor is at rest or at uniform motion in a gravity field according to the figure given below,
the output signals are:
• 0g for the X ACC channel and 0°/sec for the Ω
X
GYR channel
• 0g for the Y ACC channel and 0°/sec for the Ω
Y
GYR channel
• + 1g for the Z ACC channel and 0°/sec for the Ω
Z
GYR channel
Figure 11: Orientation of sensing axis
The following table lists all corresponding output signals on X, Y, Z while the sensor is at rest or at
uniform motion in a gravity field under assumption of a top down gravity vector as shown above.
The gyroscope signals Ω
X
, Ω
Y
, Ω
Z
show 0dps output under these static conditions.
Table 15: Output signals depending on device orientation
Sensor orientation
(gravity vector )
Output Signal X
0g
+1g
0g
-1g
0g
0g
Output Signal Y
-1g
0g
+1g
0g
0g
0g
Output Signal Z
0g
0g
0g
0g
+1g
-1g
upright
upright
o
o
o
o
force
of gravity