CALIBRATION AND APPLICATION OF CATHODE RAY OSCILLOSCOPE IN OUR LABORATORY

ABSTRACT  The cathode ray Oscilloscope plays a very important role in the laboratories, for instance it is used to measure frequency and voltage of a signal it is equally used for study current fluctuation in electric power supply the cathode ray oscilloscope is made up of three major part, they are the cathode ray tube, which is the major integral part A the Oscilloscope also the other important[1 parts of the Oscilloscope is the power supply unit and the vertical as well as horizontal amplifier. Some of the cathode ray oscillioscope are calibrated manually while some are already calibrated by the manufacturers.  The subpart of the oscilloscope which include Cathode Ray Tube   (CRT) is made of three (3) major parts namely the electron gun which produces electron before acceleration and the second sub part of the instrument in the deflecting plates which helps to deflect the electron towards the screen where it is seen.  This cathode Ray Oscilloscope works in the principle that the signal to be displayed is amplified by the vertical amplifier and applied to the vertical deflection plates of the CRT, a portion of the signal in the vertical amplifier is applied to the sweep trigger as a triggering signal.  Then the sweep trigger generates a pulse coincident with a selected point in the cycle of the triggering signal.  This pulse turns on the sweep generator. Initiating the saw-tooth wave form.
TITLE PAGE 
Title Page i Certification ii Dedication iii Acknowledge iv Abstract.v Table of Contents vi
CHAPTER ONE  1.0Introduction 1 1.1The Background Review of the Cathode Ray Oscilloscope 1 1.2Limitations of the Study 7 1.3Objective of the study 8 1.4Definition of Terms 8
CHAPTER TWO  2.1Mode of operation of Cathode Ray Oscilloscope 9 2.2Scheme Diagram of CRO10 2.3 The Parts of Cathode Ray Oscilloscope (CRO) 10 2.4Schematic Diagram of Cathode Ray Tube 11 2.4.1The pars of Cathode Ray (CRT)12 2.4.2Vertical Amplifier 13 2.4.3Delay Line14 2.4.4The Power Supply Section 15 2.4.5Time Base Generator 15 2.4.6Horizontal Sweep Section 15
CHAPTER THREE  3.0Calibration and setting up of cathode Ray  Oscillioscope 17 3.1Setting of Cathode Ray Oscilloscope 17 3.2The Summary for setting up CRO23 3.3Calibration of Cathode Ray Oscilloscope 24
CHAPTER FOUR  4.0Application of Cathode Ray Oscilloscope in  Laboratory 25 4.1CRO as a voltmeter25 4.2Frequency Measurement with CRO29 4.3Measurement of Voltage and Time Period 30

CHAPTER FIVE 5.0Summary, Conclusion and Recommendation32 5.1Summary 32 5.2Conclusion 33 5.3Recommendation 34 REFERENCES 35