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{
"metadata": {
"name": "",
"signature": "sha256:ce9c4ba63f9ce316e76597a7788141e75bacb70902db486d65612d29b6d08c96"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 11 - Instrument Calibration"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 11.3.1 - page11-7"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# percentage of the reading and percentage of full scale\n",
"#Given data :\n",
"a=10 #scale reading\n",
"b=70 # full scale\n",
"error1=-(0.5/10)*100 # in %\n",
"print \"step 1\"\n",
"print \"error of reading \", error1, \" %\"\n",
"error2=-(0.5/100)*100 # in %\n",
"print \"error of full scale is \", error2, \" %\"\n",
"print \"step 2\"\n",
"error3=(2.5/70)*100 # in %\n",
"print \"error of reading is \", round(error3,2), \" %\"\n",
"error4=(2.5/100)*100 # in %\n",
"print \"error of full scale is\", error4, \" %\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"step 1\n",
"error of reading -5.0 %\n",
"error of full scale is -0.5 %\n",
"step 2\n",
"error of reading is 3.57 %\n",
"error of full scale is 2.5 %\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 11.3.2 - page11-9"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
" # wattmeter error and correction figure\n",
"#Given data :\n",
"P1=120.0 # in W\n",
"V=114.0 #in volts\n",
"I=1 #in A\n",
"P=V*I \n",
"error1=P-P1 # in W\n",
"print \"correction figure is \", error1, \" W\"\n",
"error2=(error1/P1)*100 # in %\n",
"print \"wattmeter error is \",error2,\" %\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"correction figure is -6.0 W\n",
"wattmeter error is -5.0 %\n"
]
}
],
"prompt_number": 7
}
],
"metadata": {}
}
]
}
|
