%% SET PARAMETER addpath(genpath('D:\em3d_MT')); mesh.name = 'mesh_layeredmodel'; % Contains grid information for the model, output by GeoMesh [mesh.node2coord,mesh.elem2node,mesh.entity] = load_comsol(mesh.name); % load_mesh; %% Set the conductivity P.airID = [4]; % Domain ID of air P.sig_air = 1e-8; % Conductivity of air S/m P.sigp = 1./[2000]; % Conductivity of background (residual domain) P.sig_anoID = [2 1]; % Domain ID of the abnormal body P.sigax = 1./[20000 20000]; % Conductivity of the abnormal body P.sigay = 1./[20000 20000]; P.sigaz = 1./[20000 20000]; P.sig = Set_material_3Ani(mesh.entity,P.sig_anoID,P.airID,P.sigax,P.sigay,P.sigaz,P.sig_air,P.sigp) ; % Set the Euler rotation Angle of the abnormal body P.aS = [0 0]; P.aD = [45 45]; P.aL = [0 0]; P.AniAngle = Set_material_3Ani(mesh.entity,P.sig_anoID,P.airID,P.aS,P.aD,P.aL,0,0) ; P.sig = get_sig_ani(P.sig(:,1),P.sig(:,2),P.sig(:,3),P.AniAngle(:,1),P.AniAngle(:,2),P.AniAngle(:,3)); %% Set magnetic permitivity P.mu0 = 4*pi*1e-7 ; % V·s/ (A·m) P.mu_anoID = []; % Domain ID of the abnormal body P.mura = []; % magnetic permitivity of the abnormal body P.mur = Set_material_3Ani(mesh.entity,P.mu_anoID,P.airID,P.mura,P.mura,P.mura,1,1) ; P.mur = P.mur(:,1); P.mu = P.mur.*P.mu0 ; %% Set dielectric permittivity P.epsr_air = 1; P.epsrp = 8; % dielectric permittivity of background (residual domain) P.eps_anoID = [2 1]; % Domain ID of the abnormal body P.epsax = [8 8]; % dielectric permittivity of the abnormal body P.epsay = [5 5]; P.epsaz = [6 6]; P.epsr = Set_material_3Ani(mesh.entity,P.eps_anoID,P.airID,P.epsax,P.epsay,P.epsaz,P.epsr_air,P.epsrp) ; P.epsr = get_sig_ani(P.epsr(:,1),P.epsr(:,2),P.epsr(:,3),P.AniAngle(:,1),P.AniAngle(:,2),P.AniAngle(:,3)); P.eps0 = 8.854187817620389*10^-12 ; P.eps = P.epsr *P.eps0 ; %% Set frequency freq = logspace(4,6,11); omega = 2*pi*freq; nfreq = size(freq,2);