Hello,

I am working on turtlebot Buger and Waffle, but I get curious values from IMU.

Linear acceleration on z axis in not equal to ~9.8 m/s². And when the robot is static, I have non zeros values on x and y axis.

I have those strange values on both Burger and Waffle robots. Curiously IMU on Waffle was working fine last week.

Some idea ?

Matt

## header:

seq: 592

stamp:

secs: 1515485911

nsecs: 742161933

frame_id: imu_link

orientation:

x: 0.0163628198206

y: -0.00983170140535

z: 0.324311375618

w: 0.945753157139

orientation_covariance: [0.0024999999441206455, 0.0, 0.0, 0.0, 0.0024999999441206455, 0.0, 0.0, 0.0, 0.0024999999441206455]

angular_velocity:

x: 0.0

y: 0.0

z: 0.0

angular_velocity_covariance: [0.019999999552965164, 0.0, 0.0, 0.0, 0.019999999552965164, 0.0, 0.0, 0.0, 0.019999999552965164]

linear_acceleration:

x: 526.0

y: 420.0

z: 17362.0

linear_acceleration_covariance: [0.03999999910593033, 0.0, 0.0, 0.0, 0.03999999910593033, 0.0, 0.0, 0.0, 0.03999999910593033]