Volume 35 Issue 2
Mar.  2015
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Liu Nannan, Zhou Bin. Influence of fluxgate magnetometer on the evenness of feedback magnetic field[J]. Chinese Journal of Space Science, 2015, 35(2): 211-216. doi: 10.11728/cjss2015.02.211
Citation: Liu Nannan, Zhou Bin. Influence of fluxgate magnetometer on the evenness of feedback magnetic field[J]. Chinese Journal of Space Science, 2015, 35(2): 211-216. doi: 10.11728/cjss2015.02.211

Influence of fluxgate magnetometer on the evenness of feedback magnetic field

doi: 10.11728/cjss2015.02.211
  • Received Date: 2014-04-04
  • Rev Recd Date: 2014-05-17
  • Publish Date: 2015-03-15
  • Effects of the nonuniform feedback magnetic field on the fluxgate sensor is studied, and several typical types of the sensor are analyzed and compared mutually. It is required that the drive cores of fluxgate sensor should work in a uniform magnetic field in principle. When the magnetic field is nonuniform, error signal will be caused. Resultingly, the nonuniformity of the feedback magnetic field will lead to the change of fluxgate sensor's linear coefficient. Typical types of fluxgate sensors which work for space magnetic exploration include discrete form, Helmholtz form and Compacted Spherical Configuration (CSC) form, etc. The nonuniformity of the three feedback coils are analyzed as well as the performance of the fluxgate sensor when the feedback magnetic field is nonuniform. Compared to the simulation results, uniformity and stability of CSC sensor are much better than that of the discrete sensor, and CSC sensor is more conducive to the space magnetic field detection.

     

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