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   "cells": [

    {

     "cell_type": "heading",

     "level": 1,

     "metadata": {},

     "source": [

      "Chapter 11: Transducers as Input Elements to Instrumentation Systems"

     ]

    },

    {

     "cell_type": "heading",

     "level": 2,

     "metadata": {},

     "source": [

      "Ex11.1:pg-317"

     ]

    },

    {

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     "input": [

      "# To find change in resistance\n",

      "# Modern Electronic Instrumentation And Measurement Techniques\n",

      "# By Albert D. Helfrick, William D. Cooper\n",

      "# First Edition Second Impression, 2009\n",

      "# Dorling Kindersly Pvt. Ltd. India\n",

      "# Example 11-1 in Page 317\n",

      "\n",

      "\n",

      "\n",

      "\n",

      "# Given data\n",

      "K =2 #Gauge factor \n",

      "s = 1050 #stress in kg/cm**2\n",

      "E = 2.1*10**6 #modulus of elasticity of steel in kg/cm**2\n",

      "\n",

      "#Calculations\n",

      "strain = s/E #Hooke's law\n",

      "change_in_resistance = K*strain\n",

      "percentchange = change_in_resistance * 100\n",

      "\n",

      "print \"The change in resistance = \",round(change_in_resistance,3)\n",

      "print \"The percentage change in resistance = \",round(percentchange,1),\"%\"\n",

      "\n",

      "#Result\n",

      "# The change in resistance = 0.001\n",

      "# The percentage change in resistance = 0.1 % \n"

     ],

     "language": "python",

     "metadata": {},

     "outputs": [

      {

       "output_type": "stream",

       "stream": "stdout",

       "text": [

        "The change in resistance =  0.001\n",

        "The percentage change in resistance =  0.1 %\n"

       ]

      }

     ],

     "prompt_number": 3

    }

   ],

   "metadata": {}

  }

 ]

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