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-{
- "metadata": {
- "name": "",
- "signature": "sha256:3cc9d2c4c0d6a493cdaa2dbc9383ef800411a8ab69ddf373e977319372599f8f"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Chapter6 - Digital Frequency Meter"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.17.1 - page6-26"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "# Desired gate time\n",
- "#Given data :\n",
- "r=0.1 #in Hz\n",
- "D=1/r #in seconds\n",
- "print \"The desired gate time, D = \", D,\" seconds\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "The desired gate time, D = 10.0 seconds\n"
- ]
- }
- ],
- "prompt_number": 2
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.17.2 - page6-27"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "# Error in measurement\n",
- "f1=1.0 # in Mhz\n",
- "f2=200.0 #in kHz\n",
- "per=(200*10**-3)*100 # percentage error that printlay may indicate 4 micro seconds or 6 micro seconds\n",
- "per1=(1/50.0)*100 #percentage error after 10 times improvement\n",
- "print \"Display may indicate 4 us or 6 us, percentage error is \", per,\" %\"\n",
- "print \"Percentage error after 10 times improvement is \", per1,\" %\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Display may indicate 4 us or 6 us, percentage error is 20.0 %\n",
- "Percentage error after 10 times improvement is 2.0 %\n"
- ]
- }
- ],
- "prompt_number": 3
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 6.17.3 - page6-27"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "# Measurement Accuracy\n",
- "#Given data :\n",
- "f=400.0 #Hz\n",
- "time_accuracy=10**-8 # seconds\n",
- "display_accuracy=1 #(+ve or -Ve)\n",
- "t=10 # seconds\n",
- "period=1/f*10**3 #ms\n",
- "Accuracy= 1+((period)/10) #ms\n",
- "print \"accuracy is \u00b1\",Accuracy,\" ms\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "accuracy is \u00b1 1.25 ms\n"
- ]
- }
- ],
- "prompt_number": 7
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file