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| author | hardythe1 | 2015-06-17 11:14:34 +0530 |
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| committer | hardythe1 | 2015-06-17 11:14:34 +0530 |
| commit | afcd9e5397e3e1bde0392811d0482d76aac391dc (patch) | |
| tree | 228eab879488f9e1fb3250347e225c2ceee6f6a3 /Engineering_Physics_By_G_Vijayakumari/Chapter2.ipynb | |
| parent | 251a07c4cbed1a5a960f5ed416ce6ac13c8152b7 (diff) | |
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| -rwxr-xr-x | Engineering_Physics_By_G_Vijayakumari/Chapter2.ipynb | 156 |
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diff --git a/Engineering_Physics_By_G_Vijayakumari/Chapter2.ipynb b/Engineering_Physics_By_G_Vijayakumari/Chapter2.ipynb new file mode 100755 index 00000000..79e12829 --- /dev/null +++ b/Engineering_Physics_By_G_Vijayakumari/Chapter2.ipynb @@ -0,0 +1,156 @@ +{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "#2: Ultrasonics"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example number 2.1, Page number 30"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The frequency of vibration is 2.7451 *10**6 Hz\n"
+ ]
+ }
+ ],
+ "source": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "E=80*10**9; #Young's modulus of material of piezo electric crystal(Pa)\n",
+ "d=2654; #Density of material of piezo electric crystal(Kg/m^3)\n",
+ "t=0.1*10**-2; #Thickness of piezo electric crystal(m)\n",
+ "p=1; #for fundamental first overtone\n",
+ "\n",
+ "#Calculation\n",
+ "f=((p/(2*t))*(math.sqrt(E/d))); #Frequency of vibration of first overtone(Hz)\n",
+ "\n",
+ "#Result\n",
+ "print \"The frequency of vibration is\",round(f/10**6,4),\"*10**6 Hz\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example number 2.2, Page number 30"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Frequency in the first mode of vibration is 5.5 *10**4 Hz\n",
+ "Frequency in the second mode of vibration is 110.0 *10**3 Hz\n"
+ ]
+ }
+ ],
+ "source": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "v=5.5*10**3; #Velocity of longitudanal waves in Quartz Crystal(m/s)\n",
+ "t=0.05; #Thickness of Quartz Crystal(m)\n",
+ "\n",
+ "#Calculation\n",
+ "w=2*t; #wavelength(m)\n",
+ "v1=(v/w); #Frequency in the first mode of vibration(Hz)\n",
+ "v2=(2*v1); #Frequency in the second mode of vibration(Hz)\n",
+ "\n",
+ "#Result\n",
+ "print \"Frequency in the first mode of vibration is\",v1/10**4,\"*10**4 Hz\"\n",
+ "print \"Frequency in the second mode of vibration is\",v2/10**3,\"*10**3 Hz\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example number 2.3, Page number 31"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "The depth of sea is 495.0 m\n",
+ "The wavelength of ultrasonic pulse is 0.02 m\n"
+ ]
+ }
+ ],
+ "source": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "f=0.09*10**6; #Frequency of Ultrasonic source(Hz)\n",
+ "t=0.55; #time(sec)\n",
+ "v=1800; #velocity of sound in water(m/s)\n",
+ "\n",
+ "#Calculation\n",
+ "D=(v*t)/2; #Depth of sea(m)\n",
+ "W=(v/f); #Wavelength of ultrasonic pulse(m)\n",
+ "\n",
+ "#Result\n",
+ "print \"The depth of sea is\",D,\"m\"\n",
+ "print \"The wavelength of ultrasonic pulse is\",W,\"m\""
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 2",
+ "language": "python",
+ "name": "python2"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 2
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython2",
+ "version": "2.7.9"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}
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