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{
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"source": [
"# Chapter 3:Measurement of non electrical quantities"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.1"
]
},
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"cell_type": "code",
"execution_count": 20,
"metadata": {
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{
"name": "stdout",
"output_type": "stream",
"text": [
"deflection of screen corresponding to maximum pressure for sensitivity of 1mV/mm =350.0 mm\n",
"sinch the length of the screen is 100mm so waveform is out of range and hence sensitivity setting of 1mV/mm should not be used\n",
"deflection of screen corresponding to maximum pressure for sensitivity of 5mV/mm =70.0 mm\n",
"delection is within the range\n",
"deflection of screen corresponding to maximum pressure for sensitivity of 20mV/mm =17.0 mm\n",
"delection is within the range\n",
"deflection of screen corresponding to maximum pressure for sensitivity of 10mV/mm =3.0 mm\n",
"delection is within the range\n",
"deflection of screen corresponding to maximum pressure for sensitivity of 500mV/mm =0.0 mm\n",
"delection is within the range\n",
"since the sensitivity of 5mV/mm gives higher deflection so it is the optimum sensitivity\n"
]
}
],
"source": [
"# 3.1\n",
"import math\n",
"Aou=700*25*1/100;\n",
"Aol=100*25*1/100;\n",
"AouPtP= 2*Aou;\n",
"AolPtP= 2*Aol;\n",
"Se1=1;\n",
"D1=AouPtP/Se1;\n",
"print (\"deflection of screen corresponding to maximum pressure for sensitivity of 1mV/mm =%.1f mm\" %D1)\n",
"print ('sinch the length of the screen is 100mm so waveform is out of range and hence sensitivity setting of 1mV/mm should not be used')\n",
"Se2=5;\n",
"D2=AouPtP/Se2;\n",
"print (\"deflection of screen corresponding to maximum pressure for sensitivity of 5mV/mm =%.1f mm\" %D2)\n",
"print ('delection is within the range')\n",
"Se3=20;\n",
"D3=AouPtP/Se3;\n",
"print (\"deflection of screen corresponding to maximum pressure for sensitivity of 20mV/mm =%.1f mm\" %D3)\n",
"print ('delection is within the range')\n",
"Se4=100;\n",
"D4=AouPtP/Se4;\n",
"print (\"deflection of screen corresponding to maximum pressure for sensitivity of 10mV/mm =%.1f mm\" %D4)\n",
"print ('delection is within the range')\n",
"Se5=500;\n",
"D5=AouPtP/Se5;\n",
"print (\"deflection of screen corresponding to maximum pressure for sensitivity of 500mV/mm =%.1f mm\" %D5)\n",
"print ('delection is within the range')\n",
"print ('since the sensitivity of 5mV/mm gives higher deflection so it is the optimum sensitivity')"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.2"
]
},
{
"cell_type": "code",
"execution_count": 21,
"metadata": {
"collapsed": false,
"deletable": true,
"editable": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Radius of curvature =356.04 mm\n"
]
}
],
"source": [
"#3.2\n",
"import math\n",
"tA=1;\n",
"tB=1;\n",
"m=tA/tB;\n",
"EB=147.0;\n",
"EA=216;\n",
"T2=200.0;\n",
"T1=25;\n",
"n=EB/EA;\n",
"T=T2-T1;\n",
"A=12.5*10**-6;\n",
"B=1.7*10**-6;\n",
"a=3*(1+m)**2;\n",
"b=(1+m*n)*((m**2)+1/(m*n));\n",
"c= (6*(A-B)*T*(1+m)**2);\n",
"r=(a+b)/c;\n",
"print (\"Radius of curvature =%.2f mm\" %r)\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.3"
]
},
{
"cell_type": "code",
"execution_count": 22,
"metadata": {
"collapsed": false,
"deletable": true,
"editable": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Radius of curvature =500 mm\n",
"vertical displacement =2 mm\n"
]
}
],
"source": [
"#3.3\n",
"import math\n",
"t=2;\n",
"T2=180;\n",
"T1=20;\n",
"T=T2-T1;\n",
"A=12.5*10**-6;\n",
"r=t/(2*T*A);\n",
"print (\"Radius of curvature =%.0f mm\" %r)\n",
"Th=40.0/500;\n",
"y=r*(1.0-math.cos(Th));\n",
"print (\"vertical displacement =%.0f mm\" %y)\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.4"
]
},
{
"cell_type": "code",
"execution_count": 23,
"metadata": {
"collapsed": false,
"deletable": true,
"editable": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"True temperature =1853.57 degree K\n",
"True temperature =1580.57 degree C\n"
]
}
],
"source": [
"#3.4\n",
"import math\n",
"Ta=1480+273;\n",
"Tf=0.8;\n",
"T=Tf**-0.25*Ta;\n",
"print (\"True temperature =%.2f degree K\" %T)\n",
"Tc=T-273;\n",
"print (\"True temperature =%.2f degree C\" %Tc)\n",
"\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.5"
]
},
{
"cell_type": "code",
"execution_count": 24,
"metadata": {
"collapsed": false,
"deletable": true,
"editable": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error in temperature measurement=-172.91 degree C\n"
]
}
],
"source": [
"# 3.5\n",
"import math\n",
"ATC1=1065;\n",
"AT=ATC1+273;\n",
"Em1=0.82;\n",
"Ta=(Em1**(-0.25))*AT;\n",
"Em2=0.75;\n",
"Taa=(Em2**-0.25)*Ta;\n",
"ATC2=Taa-273;\n",
"E=ATC1-ATC2;\n",
"print (\"Error in temperature measurement=%.2f degree C\" %E)\n"
]
},
{
"cell_type": "markdown",
"metadata": {
"deletable": true,
"editable": true
},
"source": [
"## Exa 3.6"
]
},
{
"cell_type": "code",
"execution_count": 25,
"metadata": {
"collapsed": false,
"deletable": true,
"editable": true
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Average flow rate=0.02 degree m/s\n",
"Percentage decrease in voltage=1.79 degree m/s\n"
]
}
],
"source": [
"# 3.6\n",
"import math\n",
"EL=0.1;\n",
"Zo=250*10**3;\n",
"ZL=2.5*10**6;\n",
"Eo=EL*(1+(Zo/ZL));\n",
"B=0.1;\n",
"l=50*10**-3;\n",
"G=1000;\n",
"v=Eo/(B*l*G);\n",
"print (\"Average flow rate=%.2f degree m/s\" %v)\n",
"Zon=1.2*250*10**3;\n",
"ELn=2*Eo/(1+(Zon/ZL));\n",
"PDV=((0.2-ELn)/0.2)*100;\n",
"print (\"Percentage decrease in voltage=%.2f degree m/s\" %PDV)\n",
"\n"
]
}
],
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"display_name": "Python 2",
"language": "python",
"name": "python2"
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|
