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Misalignment Angle and Calibration of a Two-component Electromagnetic Log

Published online by Cambridge University Press:  23 November 2009

M. J. R. Fasham
M. J. R. Fasham
Affiliation:
(Institute of Oceanographic Sciences)
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Abstract

A simple method is described for estimating the angle of misalignment of a two-component electromagnetic log, using the covariance properties of the measured components when a ship is steered in a constant cross wind at a number of different speeds. It is shown that, with the present accuracy of radar fixing, allowing for misalignment has a very small effect on the determination of sensitivities for an absolute calibration. However the effect of misalignment is important when cross-calibrating the athwartships components of two electromagnetic logs.

Type
Research Article
Information
The Journal of Navigation , Volume 29 , Issue 1 , January 1976 , pp. 76 - 81
Copyright
Copyright © The Royal Institute of Navigation 1976

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References

REFERENCES

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