INSTALLATION FOR STUDYING THE ELECTRICAL CONDUCTIVITY OF MAGNETIC LIQUIDS WITH THE ADDITIVE OF NANOPOWDS DEPENDING ON PRESSURE AND MAGNETIC FIELD

Ilhomjon Qodirov

Authors

 

Juraev D.S. – Candidate of Technical Sciences, Senior Lecturer, Department of Power Supply and Automation, Polytechnic Institute of Tajik Technical University, Khujand, Republic of Tajikistan, juraev77@mail.ru

 

Annotation

 

   The paper describes the experimental setup and experimental procedure for studying the electrical conductivity of magnetic fluids based on transformer oil with the addition of nanopowders as a function of pressure and magnetic field at room temperature. An experimental setup for studying the electrical conductivity of magnetic fluids based on transformer oil depending on pressure and magnetic field at room temperature consists of an electrode, a measuring cell with an object, a coil for creating a magnetic field, a pump for changing pressure, an ammeter for measuring electric current, a voltmeter for measuring voltage and a rheostat, with the help of which, by changing the resistance of the circuit, we change the coil current. For the first time we investigated and obtained experimental data on the electrical conductivity of colloidal magnetic fluids based on transformer oil and iron powder as a function of pressure and magnetic field induction vector. The total weight of the test object, i.e., the magnetic fluid based on transformer oil, is 0.4 grams, and the addition of iron powder is from 0.1 to 0.3 grams with an interval of 0.05 grams. This installation makes it possible to determine with an error of up to 3% the dependence of the electrical conductivity of transformer oil on pressure and the influence of the magnetic field.

 

Keywords

 

transformer oil, electrical conductivity, nano powders, installation, experiment, test object

 

References

 

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Publication date

2023-10-27

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