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Visitor II
April 16, 2018
Question

magnetic rms noise of the LSM9DS1

  • April 16, 2018
  • 2 replies
  • 811 views
Posted on April 16, 2018 at 23:37

What is the magnetic rms noise of the LSM9DS1? I can not find it or something simular in the datasheet. Thanks for your help.

#magnetic-rms-noise
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    2 replies

    ST Employee
    April 17, 2018
    Posted on April 17, 2018 at 08:38

    Magnetometer part of LSM9DS1 is basically the same as LIS3MDL.

    0690X0000060AYwQAM.png
    Ralf L.Author
    Visitor II
    April 30, 2018
    Posted on April 30, 2018 at 21:09

    Thanks for your answer. These sensors have zero gauss levels of +/- 1 gaus which is a quater of full scale. Is that correct ? Why not all of your sensors have that offset compensation to reduce the zero gauss level.

    Regards,

    Ralf L

    ST Employee
    May 2, 2018
    Posted on May 02, 2018 at 21:57

    Yes, it is correct.

    In the final application, there is always some hard iron distortion caused by surounding objects which need s to be compenstated. The zero gauss level will be compensated together with the HI distortion, so it is not a big problem.