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SIMULATION OF PULL-IN EFFECT IN MEMS CAPACITOR USING GUI IN MATLAB

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SIMULATION OF PULL-IN EFFECT IN MEMS CAPACITOR USING GUI IN MATLAB

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near the 2/3rd of total gap between the plates the response of the mems capacitor gets unstable.

sim2(varargin)
function varargout = sim2(varargin)
% SIM2 M-file for sim2.fig
%      SIM2, by itself, creates a new SIM2 or raises the existing
%      singleton*.
%
%      H = SIM2 returns the handle to a new SIM2 or the handle to
%      the existing singleton*.
%
%      SIM2('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in SIM2.M with the given input arguments.
%
%      SIM2('Property','Value',...) creates a new SIM2 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before sim2_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to sim2_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help sim2

% Last Modified by GUIDE v2.5 11-Apr-2013 14:00:05

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @sim2_OpeningFcn, ...
                   'gui_OutputFcn',  @sim2_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before sim2 is made visible.
function sim2_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to sim2 (see VARARGIN)

% Choose default command line output for sim2
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes sim2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = sim2_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on button press in pb6.
function pb6_Callback(hObject, eventdata, handles)
% hObject    handle to pb6 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
open('sim3.fig')

% --- Executes on button press in pb7.
function pb7_Callback(hObject, eventdata, handles)
% hObject    handle to pb7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
open('sim.doc')
% handles    structure with handles and user data (see GUIDATA)


% --- Executes on button press in pb8.
function pb8_Callback(hObject, eventdata, handles)
% hObject    handle to pb8 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
close all;
open('sim1.fig')


% --- Executes on button press in pb5.
function pb5_Callback(hObject, eventdata, handles)
% hObject    handle to pb5 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
k=1e-8;
e = 8.854 * 10 ^ -12;
d = 1;               % in mm
 % in mm
% a = input('Enter the value of a: ');
a=10000;
x = 1: -0.01 : .33; % in mm
V = (2/(e*a)) * k * x .* ((d - x).^2);
plot(V,x,'*')
hold on;
x = .33: -0.01 : 0;
V = (2/(e*a)) * k * x .* ((d - x).^2);
plot(V,x)
ylabel('x---------->');
xlabel('voltage------>');
title('voltage vs x');

% --- Executes on button press in pb4.
function pb4_Callback(hObject, eventdata, handles)
% hObject    handle to pb4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
k=1e-8;
e = 8.854 * 10 ^ -12;
d = 1;               % in mm

% a = input('Enter the value of a: ');
a=10000;
x = 1: -0.01 : .33; % in mm
V = (2/(e*a)) * k * x .* ((d - x).^2);
plot(V,x,'*')
ylabel('x---------->');
xlabel('voltage------>');
title('voltage vs x');

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