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    Is it valid value of BMX160 accelerometer raw data?

    jinew
    New Poster

    Is it valid value of BMX160 accelerometer raw data?

    Hello, I'm developing a board with BMX160. 

     

    The board reads accelerometer data register and  converts G to m/s without Fast Offset Compensation.

    When bmx160 is in standstill, the value is (Accel: -0.06, -0.44, 10.54) m/s unit.

    I think accel value is under or equal with 9.8m/s.

    Is it valid?

     

    Thanks.

    3 REPLIES 3
    Minhwan
    Community Moderator

    Re: Is it valid value of BMX160 accelerometer raw data?

    Hello jinew, 

     

    When any accelerometer sensor stands on, the value should be x,y,z = 0, 0, 9.8 m/s2 (g) because it is affected by gravity only. 

    Thanks, 

    jinew
    New Poster

    Re: Is it valid value of BMX160 accelerometer raw data?

    Before applying FCO, the value exceeded 9.82, but when applying FOC, the value of 9.82 came out.

     

    When FOC is not applied, is it correct that a value over 9.82 comes out due to various noises?

    or

    Is it correct that 9.82m^2 comes out even before applying foc?

    Minhwan
    Community Moderator

    Re: Is it valid value of BMX160 accelerometer raw data?

    Hello Jinew, 

     

    Without FOC, BMX160 could have some offset value or not as you thought. 

    Using FOC function, it removes the potential risk. 

    Therefore, BMX160 could generate 9.82m^2 without FOC or have some offset if you don't use FOC function. 

    Thanks, 

     

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