Method and apparatus for measuring the undistorted magnetic field of the earth
摘要
The present invention is a magnetic field measuring system and method for generating a magnetic field signal representative of the Earth's undistorted magnetic field at any given spatial location over a measurement period. The measured undistorted magnetic field is substantially independent of distortions due to any magnetically susceptible material within the measuring system and is substantially independent of internal magnetic fields generated by magnetic field sources within the system.
申请公布号
US4972593(A)
申请公布日期
1990.11.27
申请号
US19890297883
申请日期
1989.01.17
申请人
THE CHARLES STARK DRAPER LABORATORY, INC.
发明人
DAHLEN, JOHN M.;SCHOLTEN, JAMES R.;SHILLINGFORD, JR., JOHN T.