Abstract
The development of an algorithm to automate the process of measuring the magnetic properties of macroscopic objects in motion is an important problem in various industries, especially in ferrous metallurgy and at factories where ferrous scrap is a strategic raw material. The parameter that requires work control is the hidden mass fraction of a non-magnetic substance that is present in the ferromagnetic raw material. The solution to this problem has no prototypes. In our work, a simple measuring device and a mathematical algorithm for calculating the mass fraction of the non-magnetic fraction in a strongly magnetic matrix were developed. The device is an inductance coil, in which the angle of the electromagnet losses is related to the mass of the magnetic material moving the coil. The magnitude of the instantaneous values of the lost angle integral was compared with the result of weighing the object on scales. This allowed us to calculate the proportion of the magnetic and non-magnetic fractions. The use of this prototype is herein illustrated. The experimental results of the determination of the magnetic-fractional composition depending on the mass of scrap metal and its bulk and the magnetic characteristics are presented.
Highlights
Physical Background of the MethodAutomating the measurement process of the magnetic properties of macro-objects in motion is a task in various industries where ferrous scrap is a common raw material
Operation monitoring is mainly required to control the various forms of the hidden mass fraction of non-magnetic substances present in ferromagnetic raw materials
The damage caused by non-magnetic inclusions in railway freight per annum adds up to more than seven billion rubles of direct financial losses in Russia
Summary
Physical Background of the MethodAutomating the measurement process of the magnetic properties of macro-objects in motion is a task in various industries where ferrous scrap is a common raw material. Operation monitoring is mainly required to control the various forms of the hidden mass fraction of non-magnetic substances present in ferromagnetic raw materials. The damage caused by non-magnetic inclusions in railway freight per annum adds up to more than seven billion rubles of direct financial losses in Russia. There is no system, device, or unit that enables the express control of these inclusions without stopping or unloading the train or automobile. The closest analogues are X-ray television (TV) units, which are being positioned by some developers as instruments for freight truck express control [3,4]. X-ray measurements offer no ability to evaluate the non-magnetic material mass fraction
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