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diff --git a/Electronic_Instrumentation_and_Measurements/Chapter7.ipynb b/Electronic_Instrumentation_and_Measurements/Chapter7.ipynb new file mode 100755 index 00000000..de493fe2 --- /dev/null +++ b/Electronic_Instrumentation_and_Measurements/Chapter7.ipynb @@ -0,0 +1,470 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:ea707a0cc7de0224e885823c97ef777e5b813dde41f39951ee0ed1ad37c83a74" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter7 - Low, High and Precise Resistance Measurements" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.1 - page7-24" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Resistance\n", + "#Given data :\n", + "R1=5.0 # in kohm\n", + "R2=7.0 # in kohm\n", + "R3=10.0 # in kohm\n", + "Rx=(R2*R3)/R1 \n", + "print \"Unknown resistance, Rx = \", Rx,\" kohm\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Unknown resistance, Rx = 14.0 kohm\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.2 - page7-24" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Current\n", + "#Given data :\n", + "R1=1.5 # in kohm\n", + "R2=3.0 # in kohm\n", + "R3=5.0 # in kohm\n", + "R4=14.0 #in kohm\n", + "Rg=250.0 #in ohm\n", + "E=10.0 #in V\n", + "Vd=(E*R4)/(R2+R4) \n", + "Vc=(E*R3)/(R1+R3) \n", + "E_th=E*((R4/(R2+R4))-(R3/(R1+R3))) \n", + "R_th=((R1*R3)/(R1+R3))+((R2*R4)/(R2+R4)) \n", + "Ig=(E_th/((R_th*10**3)+Rg))*10**6 \n", + "print \"Current, Ig = \",round(Ig,2),\" micro A\"\n", + "# answer is wrong in book\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Current, Ig = 140.15 micro A\n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.3 - page7-26" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Deflection\n", + "#Given data :\n", + "s=8 #sensivity in mm/micro A\n", + "R1=1.0 # in kohm\n", + "R2=5.0 # in kohm\n", + "R3=2.0 # in kohm\n", + "R4=10.0 #in kohm\n", + "Rg=150.0 #in ohm\n", + "E=6.0 #in V\n", + "r=10.0 # unbalance resistance in ohm\n", + "del_r=10.0 # in kohm\n", + "R4_1=((R4*10**3)+r)*10**-3 \n", + "Vd=(E*R4_1)/(R2+R4_1) \n", + "Vc=(E*R3)/(R1+R3) \n", + "E_th=E*((R4_1/(R2+R4_1))-(R3/(R1+R3))) \n", + "R_th=((R1*R3)/(R1+R3))+((R2*R4)/(R2+R4)) \n", + "Ig=(E_th/((R_th*10**3)+Rg))*10**6 \n", + "d=Ig*s #deflection in mm\n", + "print \"Deflection is \",round(d,1), \" mm\"\n", + "#answer is wrong in the textbook\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Deflection is 2.6 mm\n" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.4 - page7-28" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Current\n", + "#Given data :\n", + "R=500.0 #in ohm\n", + "Rg=150.0 # in ohm\n", + "del_r=10.0 # in ohm\n", + "E=6.0 #in V\n", + "E_th=(E*del_r)/(4*R) \n", + "R_th=R \n", + "Ig=(E_th/(R_th+Rg))*10**6 \n", + "print \"Current, Ig = \", round(Ig,3), \"micro A\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Current, Ig = 46.154 micro A\n" + ] + } + ], + "prompt_number": 9 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.5 page7-29" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Supply voltage\n", + "#Given data :\n", + "R=120.0 #in ohm\n", + "del_r=1.0 # in ohm\n", + "E_th=10*10**-3 #in V\n", + "E=(E_th*4*R)/del_r \n", + "print \"Supply voltage, E = \", E,\" V\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Supply voltage, E = 4.8 V\n" + ] + } + ], + "prompt_number": 10 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.6 - page7-30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Resistance\n", + "#Given data :\n", + "A=100.24 # in ohm\n", + "B=200.0 # in ohm\n", + "a=100.31 # in ohm\n", + "b=200.0 # in ohm\n", + "S=100.03 # in micro ohm\n", + "r=700.0 # in micro ohm\n", + "X=((A/b)*S)+(((r*b)/(r+a+b))*((A/B)-(a/b))) \n", + "print \"Unknown resistance, X = \", round(X,2), \"micro ohm\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Unknown resistance, X = 50.09 micro ohm\n" + ] + } + ], + "prompt_number": 12 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.7 - page7-31" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Deflection\n", + "#Given data :\n", + "R_ab=100.0 # in ohm\n", + "R_bc=500.0 # in ohm\n", + "R_cd=1000.0 # in ohm\n", + "R_da=200.0 # in ohm\n", + "V=10.0 \n", + "VRg=200. # in ohm\n", + "del_CD=10.0 # in ohm\n", + "V_bd=V*((R_ab/(R_ab+R_bc))-(R_da/(R_da+R_cd+del_CD))) \n", + "R_bd=(((R_ab*R_bc)/(R_ab+R_bc))+((VRg*(R_cd+del_CD))/(VRg+R_cd+del_CD))) \n", + "I_G=(V_bd/(R_bd+VRg)) \n", + "s=5 #sensivity in micro A/mm\n", + "dg=I_G*10**6*s #deflection in mm\n", + "print \"Deflection is \",round(dg,0),\" mm\"\n", + "#answer is wrong in the textbook" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Deflection is 153.0 mm\n" + ] + } + ], + "prompt_number": 15 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.8 - page7-32" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#LIMITING VALUE OF RESISTANCE\n", + "P=100.0 #OHMS\n", + "Q=P \n", + "S=230.0 #IN ohm\n", + "DP=0.02 #ERROR IN PERCENTAGE\n", + "DS=0.01 #IN PERCENTAGE\n", + "R=(P/Q)*S #unknown resistance in ohms\n", + "dr=(DP+DP+DS) #relative limiting error in unknow resistance in percentage \u00b1\n", + "drm=(dr/100)*R #magnitude of error\n", + "R1=R+drm #in ohms\n", + "R2=R-drm #in ohms\n", + "print \"Limiting value of unknow resistance is \", R2, \" ohm to \", R1, \" ohm\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Limiting value of unknow resistance is 229.885 ohm to 230.115 ohm\n" + ] + } + ], + "prompt_number": 17 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.9 - page7-33" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#Insulation resistance of cable\n", + "t=120.0 #in seconds\n", + "v1=300.0 #in volts\n", + "v2=100.0 #in volts\n", + "c=300.0 #capacitance in pf\n", + "r=t/(c)/math.log(v1/v2)#resistance in Mohm\n", + "print \"Resistance of cable is \", round(r,3),\" Mohm\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Resistance of cable is 0.364 Mohm\n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.10 - page7-33" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Resistance \n", + "g=2000.0 #in ohms\n", + "s=10.0 #in kohm\n", + "q1=40.0 #divisions\n", + "q2=46.0 #divisions\n", + "r=((q1/q2)*((s*10**3)+(g)))-g #in ohms\n", + "print \"Unknown resistance is \",round(r,2),\" ohm\"\n", + "#answer is wrong in the textbook\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Unknown resistance is 8434.78 ohm\n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.11 - page7-34" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Resistance \n", + "t=200.0 # in V\n", + "i=0.5 #in A\n", + "ra=10.0 #in ohm\n", + "x=t/i #in ohm\n", + "r=x-ra #in ohm\n", + "print \"Unknown resistance is \",r,\" ohm\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Unknown resistance is 390.0 ohm\n" + ] + } + ], + "prompt_number": 22 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 7.5.12 - page7-34" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#Ammeter and voltmeter readings\n", + "t=200.0 # in V\n", + "i=0.5 #in A\n", + "ra=10.0 #in ohm\n", + "x=t/i #in ohm\n", + "r=x-ra #in ohm\n", + "sv=10 #sensivity in kohms / V\n", + "v=1000 #in V\n", + "rv=v*sv *10**-6 # in Mohm\n", + "rp=((rv*10**6)*r)/(rv*10**6+r) #in ohm\n", + "vr=((t*rp)/(ra+rp)) #voltmeter reading in V\n", + "vi=vr/rp #ammeter rading in A\n", + "print \"Voltmeter reading is \",round(vr,2),\" V\"\n", + "print \"Ammeter rading is \",round(vi,5),\" A\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Voltmeter reading is 194.81 V\n", + "Ammeter rading is 0.51899 A\n" + ] + } + ], + "prompt_number": 27 + } + ], + "metadata": {} + } + ] +}
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