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    Andreas Siebert

    Andreas Siebert

    @Andreas Siebert

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    Andreas Siebert Follow

    Posts made by Andreas Siebert

    RE: How to synchronize OpenIMU300ZI with external accelerometer?

    Or ist it possible to record data dependent of a TTL-trigger signal?

    posted in The OpenIMU Family •
    How to synchronize OpenIMU300ZI with external accelerometer?

    Hello,

    according to the docs it is just described how to sync IMU with 1PPS Signal from GNSS.

    I have an external accelerometer and want to use the synchronization input to syn the IMU with the sensor.

    Which files do I have to configure?

    Kind Regards

    posted in The OpenIMU Family •
    RE: Rate and Acceleration Bias State-Transition Models

    Has noboy an idea? I just need a reference.

    posted in The OpenIMU Family •
    Rate and Acceleration Bias State-Transition Models

    Hello,

    the proposed EKF in the Aceinna Online Manuel uses in the state-transition section for the rate and acceleration bias following model to calculate the standard deviation of the drift rate of the gyroscope:
    3d46378f-08fd-4344-9068-cb5aee1344f3-image.png

    It is just said that this equation comes from an empirical study. Are there any paper/links available to this study where I can find this relation between BI and ARW respectively to the gyro drift rate?

    Thanks in advance.

    Kind Regards
    Andreas

    posted in The OpenIMU Family •
    OpenIMU300ZI - G-Sensitivity of gyro (shock-resistance)

    Dear all,

    Background:
    In my application there are sometimes harsh dynamic situations where the linear acceleration is for short terms out of the dynamic range of the used accelerometer (for instance car crash). Using an adaptive gain
    I ensure that the accelerometer measurements are weighted less in this situation.

    Problem:
    In harsh g-environments the g-sensitivity of the gyroscope becomes more relevant.
    According to the datasheet of the OpenIMU300ZI I cannot find any specifications about the g-sensitivity of the gyroscope.

    Do you have any idea about the linear g-sensitivity of the gyro or how I can get them in experiments?

    Kind Regards
    Andreas

    posted in The OpenIMU Family •