About Sparkfun IMU 6 DOF

Archive SparkFun Site Questions/Comments
1

I want to ask about the Sparkfun IMU 6 DOF , Is it contain any soft ware filter like kalman filter , or not

Regards

Redwan

2

The 6DOF IMU only records raw readings. A kalman filter needs more information [such as control inputs / etc] than the 6DOF IMU can provide.

Cheers,

–David Carne

3

hi,

i am actually working on Sparkfun’s 6dof v4 IMU, in order to develop a head tracking, I am specially interesseted by the azimuth angle,

i have somes questions:

  1. can i use the measurements of IMU 6 to obtain the angle with represents the orienation of the haed(azimuth), magnetic or gyroscopic

2 the sign of values, I can not

distinguish the east from west, because there is no negative values, and

the response returned on the right is practically the same one with that

of left,

could you please help me, or guide me towards tracks to solve my problem

(find a yaw measurements)

4

hi, i wanna know what is the exact output format of this module (Atomic IMU 6 Degrees of Freedom) ?

is it the angle? if it is not, is there an easy way to get such output?

otherwise do you have any device to give me the angle?

thanks a lot.

5

busonerd:
The 6DOF IMU only records raw readings. A kalman filter needs more information [such as control inputs / etc] than the 6DOF IMU can provide.

Cheers,

–David Carne

I thought that with 3accelerometers, 3 gyros and 3 magnetometers you can develop a Kalman filter. The pitch and roll angles obtained by the gyro are compensated with the accelerometer data. The magnetometer data is compensated with the roll and pitch angles previusly calculated. Finally the yaw angle obtained by the gyro is compensated by the magnetometer data.

I do not understand why control inputs are necessary.

Regards!!!

Ima_P