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Measurement quality estimation of proton-precession magnetometers

Abstract

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.

References

  1. Denisov, A. Y., V. A. Sapunov, and O. V. Dikusar, Calculation of the error in the measurements of a digital-processor nuclear-precession magnetometer, Geomagnetism and Aeronomy, 39(6), 737, 1999.

    Google Scholar 

  2. Farrell, E. and C. Grosch, Determination of period from times of zeros, Proceeding of the IEEE, 12, 2162–2163, 1965.

    Google Scholar 

  3. Freedman, R. and G. Roualt, Remaining-oil determination using nuclear magnetism logging, SPE Formation Evaluation, June, 121–130, 1989.

    Google Scholar 

  4. Hancke, G. P., The optimal frequency estimation of noise sinusoidal signal, IEE Transactions on Instrumentation and Measurement, 39(6), 843–846, 1990.

    Article  Google Scholar 

  5. Primdahl, F., Scalar magnetometers for space applications, Measurement Techniques in Space Plasmas: Field, Geophysical Monograph, 103, pp. 85–99, 1998.

    Article  Google Scholar 

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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). https://doi.org/10.1186/BF03351971

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Key words

  • Proton Overhauser Magnetometer
  • magnetic observatory instrumentation
  • measurement quality