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Volume 58 Supplement 6

Special Issue: Ground Magnetic Observations: New technologies and the role in understanding the Earth System

Measurement quality estimation of proton-precession magnetometers


A method for calculating quality estimation of the magnetic field value measured by proton-precession magnetometers from data of single measurement is presented. This method is appropriate for frequency measurement algorithms which process time-series of signal’s zero crossing. Expressions for measurement error estimation are obtained taking into account signal decay and correlated noise. Presented formulas allow a result reliability to be estimated immediately in single measurement and give an opportunity for complex control of a device performance. Correlation and relaxation corrections are given. It was experimentally tested that the standard deviation of measurements is in a good qualitative agreement with presented error estimation.


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Correspondence to V. A. Sapunov.

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Denisov, A.Y., Denisova, O.V., Sapunov, V.A. et al. Measurement quality estimation of proton-precession magnetometers. Earth Planet Sp 58, 707–710 (2006).

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Key words

  • Proton Overhauser Magnetometer
  • magnetic observatory instrumentation
  • measurement quality