Electronics measurement
2 likes107 views
The document discusses the cathode ray oscilloscope (CRO). It begins with an introduction to the CRO, describing it as a versatile electronic instrument used to visually display signals and measure properties like frequency and amplitude. It then provides a block diagram of the CRO and details its main components, including the cathode ray tube. The cathode ray tube section describes its key parts like the electron gun assembly and deflection plates. The document also discusses using the CRO to generate Lissajous patterns and how these can be used to measure frequency and phase. In closing, it provides a brief block diagram of the digital storage oscilloscope (DSO).
Electronics measurement
- 1. N I D H I S H U L K A A S S I S T A N T P R O F E S S O R Electronics Measurement CRO, DSO
- 2. CRO Introduction to CRO Block diagram of CRO Detailed description of CRT
- 3. HOW A CRO LOOKS LIKE
- 4. Introduction of CRO Versatile electronic instrument giving visual display of signals Used for measurement of frequency ,amplitude, phase etc. Also used in determining the nature and characteristics of various components. Has a high bandwidth range thus making it a sensitive and accurate device. Easier to use as the internal routine act as a guide to the user
- 6. Cathode Ray Tube The main parts of Cathode Ray Tube are: •Electron Gun Assembly •Focusing Anodes •Deflection Plates Assembly •Screen for CRT
- 13. BLOCK DIAGRAM of CRO
- 14. CRO Measurement
- 15. Lissajous Pattern When two sinusoidal voltage signals of equal frequency having some phase difference are applied to the deflection plates of CRO, a straight line or an ellipse appears on the screen these figures are called Lissajous figures or Lissajous curves or pattern.
- 16. Some examples of lissajous figures……..
- 17. With the help of lissajous figures we can measure……. Frequency Phase
- 18. Frequency Measurement Fx/Fy = Hp/Vp Fx = Unknown frequency Fy = Known frequency Hp = Points on horizontal tangencies Vp = Points on vertical tangencies
- 19. Block diagram of DSO
- 21. Thank you