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Oscilloscope
The document discusses oscilloscopes, including: 1) An oscilloscope is a visual voltmeter that displays voltage patterns over time using a cathode ray tube (CRT) similar to a television screen. 2) There are several types of oscilloscopes including analog, digital storage, digital phosphor, and digital sampling oscilloscopes. 3) Oscilloscopes are used to measure signals and analyze waveforms, and can display different waveforms like sine waves. They have applications in measuring light intensity from a photocell and other signals.
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Discusses oscilloscope applications and functions as a visual voltmeter with timing capabilities.
Explores four types: Analogue, Digital Storage, Digital Phosphor, and Digital Sampling scopes.
Covers scope panel, probe, wave types, and integration of analog and digital scopes.
Details measuring phase difference of signals using XY mode and Lissajous patterns.
Describes how photocells convert light signals into electrical signals for scientific data.
Evaluates CRT components, electron gun operation, deflection plates, and applied voltage examples.
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Oscilloscope
- 1. OSCILLOSCOPE AND ITS APPLICATIONS Taif AiedFaisal M.Sc. Laser and Optoelectronics Engineering
- 2. Introduction Oscilloscope (scope)is a visual voltmeter with a timer (clock) that shows when a voltage changes. An analog scope uses a cathode ray tube (CRT) similar to a television screen to display voltage patterns.
- 3. Types of Oscilloscope •Analogue Oscilloscope • Digital Storage Oscilloscope • Digital Phosphor Oscilloscope • Digital Sampling Oscilloscope
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- 8. Analog and digitalscope
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- 11. Phase Shift Measurements The difference in timing between two otherwise identical periodic signals is to use XY mode to measure the phase shift. This measurement technique involves inputting one signal into the vertical system as usual and then another signal into the horizontal system . It’s called an XY measurement because both the X and Y axis are tracing voltages, the waveform that results from this arrangement is called a Lissajous pattern. From the shape of the Lissajous pattern, you can tell the phase difference between the two signals. You can also tell their frequency ratio.
- 12. Lissajous patterns forvarious frequency ratios and phase shifts
- 13. X-Y Operation δ Sweep generatorto produce one cycle of a sawtooth waveform when it receives a pulse at its input. δ PG to produce periodical pulses with a period ofT, which is equal to the period of the input signal.
- 14. Measuring light on photocell Asensor creates electrical signal in response to physical stimuli; such as sound, mechanical stress, pressure, light, or heat. The photocell converts light intensity into electrical signal. Scientific data can be gathered by scope
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- 16. Structure and maincomponents of a CRT Face plane of the CRO screen
- 17. Electron gunprovides a sharply focused electron beam directed toward the fluorescent-coated screen. The thermally heated cathode emits electrons in many directions. The control grid provides an axial direction for the electron beam and controls the number and speed of electrons in the beam.
- 18. It consistsof two pairs of parallel plates referred to as the vertical and horizontal deflection plates. One of the plates in each set is permanently connected to the ground (0V), whereas the other plate of each set is connected to input signals or triggering signal of the CRO.
- 19. A +V isapplied toY I/p e-beam deflect vertically upward A –V is applied toY I/p e-beam deflect vertically downward. The same is for X I/p.
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