H. Masumoto, G. Ôtomo and M. Sugihara
When the two coils in the magnetometer method are on the same axis or in parallel, the present investigators have deduced two equations showing the relations of the equivalent distance between the poles to the distance between the magnetometer and the magnetized bar. And using the values of free magnetism on a soft iron bar determined by T. Yoshida and H. Kadooka, the positions of the equivalent poles have been calculated by means of the equations mentioned above. It has been found that the positions of the equivalent poles are remarkably influenced by the distance between the magnetometer and the magnetized bar, and by the intensity of external field.
Please do not copy without permission.