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  • Article
  • Open Access

Measurement quality estimation of proton-precession magnetometers

Earth, Planets and Space200658:BF03351971

  • Received: 29 April 2005
  • Accepted: 21 January 2006
  • Published:


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.

Key words

  • Proton Overhauser Magnetometer
  • magnetic observatory instrumentation
  • measurement quality