Analysis of the features of the measurement of the magnetization of hollow cylinders using an induction transducer

A formula for calculating the effect of the dimensions of a hollow cylinder of material with a high magnetic permeability on the fraction of the magnetic flux, closing through its inner cavity, is obtained. The influence of this effect on the results of a measurement of the magnetization of hollow cylinders of different length and wall thickness is analyzed. It is shown that it is necessary to take this into account in magnetic measurements. Translated from Izmeritel’naya Tekhnika, No. 4, pp. 47–50, April, 2009.