Title :
Analysis of an Eddy Current Sensor for Liquid Pressure Measuring by FEM simulation
Author :
Xu Linsen ; Luo Minzhou ; Xu Linsen ; Luo Minzhou ; Feng, Han ; Xiaojuan, Hu
Author_Institution :
Inst. of Intell. Machines, Chinese Acad. of Sci., Hefei
Abstract :
The influence of the uniform pressure on the induced magnetic field and the eddy distribution is shown in this paper to provide foundation for the design of an eddy current sensor for measuring the liquid pressure. For reviewing the distribution characters of the magnetic field and the eddy current, the basic principle of the eddy current sensor for liquid pressure measuring is discussed firstly, and the mechanical analysis to the diaphragm of the sensor is carried out to describe its deformation under the pressure, which influences the magnetic flux density of the system. Then the finite element method (FEM) model is built using the electromagnetic theory and the functional analysis to get the magnetic flux density and the current density of the coil. At last, the simulation results is got, which shows the change of the magnetic flux density when the pressure being loaded.
Keywords :
coils; current density; electric sensing devices; finite element analysis; magnetic flux; pressure measurement; FEM simulation; current density; eddy current sensor; eddy distribution; electromagnetic theory; finite element method; functional analysis; liquid pressure measuring; magnetic flux density; Analytical models; Current measurement; Eddy currents; Magnetic analysis; Magnetic field measurement; Magnetic flux density; Magnetic liquids; Magnetic sensors; Mechanical sensors; Pressure measurement; eddy current sensor; finite element method; pressure measuring;
Conference_Titel :
Robotics, Automation and Mechatronics, 2008 IEEE Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1675-2
Electronic_ISBN :
978-1-4244-1676-9
DOI :
10.1109/RAMECH.2008.4681329
