Mechanics, Materials Science & Engineering, July 2017 – ISSN 2412-5954
Particular Issues Associated with Performing Meterage Through the Use of Magneto Therapy Devices 1 Y.S. Lapchenko1,a, V.Y. Denysiuk1,b, V.V. Krasovski1,c, V.P. Symonyuk1,d 1 – Lutsk National Technical University, Lutsk, Ukraine a – y.lapchenko@lntu.edu.ua b – v.denysiuk@lntu.edu.ua c – vlkras@i.ua d – v.symonyuk@lntu.edu.ua DOI 10.2412/mmse.91.41.874 provided by Seo4U.link
Keywords: magneto therapy, inductor, magnetic induction, electronic oscillograph, electromotive force, transducer.
ABSTRACT. This article describes the features of the measurement of magnetic parameters of magneto therapy devices. The following measurement of magnetic induction of a continuous magnetic field, the magnetic induction of the sinusoidal magnetic field. Also describes the inductive method of measuring a variable magnetic induction of the sinusoidal and non-sinusoidal of the magnetic field.
Introduction. Magnetic fields which are used in magneto therapy and magneto biology, generally are inhomogeneous and limited in volume, they are distinct in the variety of parameters. Thus, the magnitude of magnetic induction can range from fractions to hundreds milliteslas; the fields can be continuous and variable/alternating (sinusoidal, rippled, pulsed), they are characterized by various frequencies and waveform of the currency that goes through the inductor. At this variety of parameters, relevant industrial metering devices can scarcely ever be found. However, even if they are available, the process of measurement and obtaining a result is quite time-consuming. Firstly, it is related to the fact that key parameters of the magnetic field, magnetic induction and its gradient, are vector quantities and must be estimated not only in magnitude (module), but also in orientation. Transducers, which respond to the direction of a vector, are used for metering quantities. That kind of transducer must be compact, much smaller than the field action area, because the induction aggregates throughout the transducer [1]. Research results. For the convenience of use and the increase of mechanical performance, the transducer along with the connected wires are usually mounted in an applicator which is a thin plastic plate considerably more long than wide, and is sufficient for manipulating. Using a step-by-step approaching during the process of metering, a place where a vector of magnetic induction vertical to the surface of the transducer is found, which is shown by a maximum value of a device attached to it. In the process of magnetic induction metering on the surface of the magnetic field source, an applicator is attached against this surface. Taking into account that magnetic field is inhomogeneous, when magnetic induction and its gradients are in nearly, yet surrounding points, they can fundamentally differ depending on the type of source (constant magnet, solenoid, electromagnet), its configuration (the form of section, correlation of crosswise size and longitudinal size), and dimensions, metering result is valid only to the point at which it is received. In other words, the results of metering parameters of the field must be snapped to coordinate grid.
© 2017 The Authors. Published by Magnolithe GmbH. This is an open access article under the CC BY-NC-ND license http://creativecommons.org/licenses/by-nc-nd/4.0/
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