Detection of the change of a magnetic field in the environment by magnetic fluid

International Conference on Innovations in Non-Destructive Testing (SibTest)

Zyatkov, D.^1 ; Yurchenko, A.^1,2 ; Yurchenko, V.^3

National Research Tomsk Polytechnic University, Tomsk, Russia^1

National Research Tomsk State University, Tomsk, Russia^2

Research Institute of Semiconductor Devices, Tomsk, Russia^3

关键词: Active medium;    Chain aggregates;    Condenser capacity;    Future applications;    Magnetic field sensors;    Magnetic particle;    Sensitive elements;    Weak magnetic fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/881/1/012037/pdf
DOI  :  10.1088/1742-6596/881/1/012037

来源: IOP

【 摘 要 】

The experimental results of the magnetic field sensor based on various materials are presented. In article the possibility of use of magnetic fluid as a sensitive element of the magnetic field sensor is considered. The importance of current tasks deals with the search of the perspective magnetic substances susceptible to weak magnetic field. The operation principle of the sensor is based on change in the capacity of the condenser with magnetic active medium caused by the magnetic field. The complex organization of magnetic particles into chain aggregates was considered. The principle of measuring the condenser capacity is described. The experimental results are promising for future application.