A Procedure for Calibrating Magnetic Sensors

Abstract

The calibration of magnetometers is of interest to the U.S. Army Research Laboratory because these sensors are being investigated as components of navigation and instrumentation packages. Calibration is the process of estimating the coefficients of an analytical model of sensor output. In many cases, it is possible to represent the output of a sensor analytically. This representation embodies our knowledge of the sensor. For this process to proceed, an adequate model of the sensor and an evaluation procedure need to be implemented. These data sets indicate different scale factors for the same magnetometer. The fits for the peak-to-peak and average values do not agree. This should be investigated when time and money permit. The establishment of analytical formulae for measurement is central to the calibration process. These formulae, coupled with a least squares estimation, provide the framework for calibration; other methods should explain their omission of least squares.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2002
Accession Number
ADA399851

Entities

People

  • Andrew A. Thompson

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Calibration
  • Coefficients
  • Data Sets
  • Detectors
  • Equations
  • Instrumentation
  • Magnetic Detectors
  • Magnetic Fields
  • Magnetometers
  • Materials
  • Measurement
  • Military Research
  • Navigation
  • Observation
  • Residuals

Readers

  • Aerospace Test and Evaluation
  • Computational Modeling and Simulation