An optical method for research a magnetic track using speckles of the structure of scattered laser radiation

Abstract

A new method for detecting a magnetic track from a moving magnetic object is presented. The features of the formation of a magnetic track from a moving object at a depth are determined. A technique has been developed to research the nature of changes in the magnetic field in a magnetic track using ferromagnetic fluid. The optimal sizes of the ferrofluidic cell and the parameters of laser radiation are established. The results of experimental research are presented.