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diff --git a/Basic_Electronics_(Electronics_Engineering)_by_J.B.Gupta/chapter15.ipynb b/Basic_Electronics_(Electronics_Engineering)_by_J.B.Gupta/chapter15.ipynb new file mode 100644 index 00000000..242a7d17 --- /dev/null +++ b/Basic_Electronics_(Electronics_Engineering)_by_J.B.Gupta/chapter15.ipynb @@ -0,0 +1,394 @@ +{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "#Chapter 15 , Cathode Ray Oscilloscope"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.1 , Page Number 537"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 15,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Deflection sensitivity : 0.167 mm/V.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "l = 25.0 * 10**-3 #Length of plates (in meter)\n",
+ "d = 5.0 * 10**-3 #Distance between plates (in meter)\n",
+ "S = 0.20 #Distance between screen and centre of plates (in meter) \n",
+ "Va = 3000.0 #Accelerating voltage (in volts)\n",
+ "tracelen = 0.1 #Trace length (in meter)\n",
+ "y = tracelen/2 #vertical distance (in meter)\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "Vd = 2*d*Va*y/(l*S) #Deflecting voltage (in volts)\n",
+ "Vrms = Vd/2**0.5 #RMS value of voltage (in volts)\n",
+ "defsen = l*S/(2*d*Va) #Deflection sensitivity (in meter per volt)\n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Deflection sensitivity : \",round(defsen * 10**3,3),\"mm/V.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.2 , Page Number 537"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 14,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Maximum velocity of electrons : 18.75 e+6 m/s.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "Va = 1000.0 #Accelerating voltage (in volts)\n",
+ "e = 1.6 * 10**-19 #Charge on electron (in Coulomb)\n",
+ "m = 9.1 * 10**-31 #Mass of electron (in kilogram) \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "v = (2*Va*e/m)**0.5 #Maximum velocity of electrons (in meter per second) \n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Maximum velocity of electrons : \",round(v*10**-6,2),\"e+6 m/s.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.3 , Page Number 538"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 11,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Applied voltage : 100.0 V.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "defsen = 0.05 * 10**-3 #Deflection Sensitivity (in meter per volt)\n",
+ "spotdef = 5.0 * 10**-3 #Deflection factor (in volt per meter)\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "V = spotdef/defsen #Applied voltage (in volts)\n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Applied voltage : \",V,\"V.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.4 , Page Number 538"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 10,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Deflection sensitivity : 0.1667 mm/V.\n",
+ "Deflection factor : 6.0 V/mm.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "l = 20.0 * 10**-3 #Length of plates (in meter)\n",
+ "d = 5.0 * 10**-3 #Distance between plates (in meter)\n",
+ "S = 0.25 #Distance between screen and centre of plates (in meter) \n",
+ "Va = 3000.0 #Accelerating voltage (in volts) \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "defsen = l*S/(2*d*Va) #Deflection Sensitivity (in meter per volt)\n",
+ "deffact = 1/defsen #Deflection factor (in volt per meter)\n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Deflection sensitivity : \",round(defsen*10**3,4),\"mm/V.\"\n",
+ "print \"Deflection factor : \",deffact*10**-3,\"V/mm.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.6 , Page Number 549"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Ratio of freqency of vertical and horizontal signals : 1.5 .\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "tangv = 3.0 #Positive of Y - peak to vertical line\n",
+ "tangh = 2.0 #Positive of X - peak to horizontal line \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "ratio = tangv/tangh #Ratio of freq. of vertical and horizontal signals \n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Ratio of freqency of vertical and horizontal signals : \",ratio,\".\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.7 , Page Number 549"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Frequency of vertical input : 7500.0 Hz.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "fx = 3.0 * 10**3 #Frequency of horizontal input (in Hertz)\n",
+ "tangv = 2.5 #Positive of Y - peak to vertical line\n",
+ "tangh = 1.0 #Positive of X - peak to horizontal line \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "fy = fx*tangv/tangh #Frequency of vertical input (in Hertz)\n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Frequency of vertical input : \",fy,\"Hz.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.8 , Page Number 549"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Frequency of vertical input : 2500.0 Hz.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "fx = 1000.0 #Frequency of horizontal input (in Hertz)\n",
+ "tangv = 2.0 #Points of tangency to vertical line\n",
+ "tangh = 5.0 #Points of tangency to horizontal line \n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "fy = fx*tangh/tangv #Frequency of vertical input (in Hertz)\n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Frequency of vertical input : \",fy,\"Hz.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.9 , Page Number 549"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "Mark to Space ratio : 0.25 .\n",
+ "Pulse frequency : 50.0 kHz.\n",
+ "Magnitude of pulse voltage : 0.43 V.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "div = 1.0 #One division = one cm (in cm)\n",
+ "mark = 0.4 #One mark (in cm)\n",
+ "space = 1.6 #One space (in cm)\n",
+ "Amp = 2.15 #Amplitude \n",
+ "Ampctrl = 0.2 #Signal amplitude control (in volt per division) \n",
+ "tbctrlset = 10.0 * 10**-6 #Time based control setting (in seconds)\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "MtoS = mark/space #Mark to space ratio\n",
+ "T = (space + mark)*tbctrlset #Pulse time period (in seconds)\n",
+ "f = 1/T #Pulse frequency (in Hertz)\n",
+ "Vp = Amp * Ampctrl #Magnitude of pulse voltage (in volts) \n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"Mark to Space ratio : \",round(MtoS,2),\".\"\n",
+ "print \"Pulse frequency : \",(f*10**-3),\"kHz.\"\n",
+ "print \"Magnitude of pulse voltage : \",Vp,\"V.\""
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "##Example 15.10 , Page Number 550"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "RMS value of ac voltage : 17.678 V.\n"
+ ]
+ }
+ ],
+ "source": [
+ "#Variables\n",
+ "\n",
+ "L = 10 #Length of trace (in cm)\n",
+ "S = 5 #Deflection sensitivty (in volt per cm)\n",
+ "\n",
+ "#Calculation\n",
+ "\n",
+ "Vpktopk = L*S #Voltage peak-to-peak (in volts)\n",
+ "Vpeak = Vpktopk/2 #Peak value of voltage (in volts)\n",
+ "Vrms = Vpeak/2**0.5 #RMS of peak value (in volts) \n",
+ "\n",
+ "#Result\n",
+ "\n",
+ "print \"RMS value of ac voltage : \",round(Vrms,3),\"V.\"\n",
+ "\n",
+ "#Slight variations due to higher precision."
+ ]
+ }
+ ],
+ "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": "2.7.10"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}
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