Use of Oscilloscope.

Experiment No: – 07

Aim of the Experiment: –

                                        Use of Oscilloscope.

Objective:

To be written by student.

Apparatus Required: –

Sl. No.	Equipment Name	Specification	Make	Quantity
1	Oscilloscope			1 no.
2	Function Generator			1 no.
3	BNC Cables			1 no.
4	Assorted Resistors			1 no.
5	Power Supply			1 no.

Diagram: –

Theory: –

          An oscilloscope is a versatile electronic instrument used to visualize and measure various electrical signals. It is commonly used in electronics, telecommunications, engineering, and other fields. Here are some of the primary uses of an oscilloscope:

1. Signal Visualization: The oscilloscope displays electrical waveforms in the form of voltage versus time graphs. It allows users to observe the shape, amplitude, frequency, and other characteristics of electrical signals. This helps in troubleshooting and analyzing signal behaviour.
2. Measurement of Voltage and Time: Oscilloscopes provide accurate voltage measurements, allowing users to determine the peak-to-peak voltage, RMS voltage, frequency, and period of a signal. Time measurements such as rise time, fall time, and pulse width can also be obtained.
3. Signal Integrity Analysis: By observing the shape and quality of signals on an oscilloscope, users can analyze the integrity of digital signals, such as checking for noise, distortion, overshoot, undershoot, ringing, and jitter.
4. Troubleshooting and Debugging: Oscilloscopes are indispensable tools for identifying and diagnosing faults in electronic circuits. They help pinpoint issues such as signal distortions, incorrect timing, voltage irregularities, and signal interference.
5. Frequency Analysis: Some oscilloscopes have built-in spectrum analysis capabilities, allowing users to perform frequency domain analysis. This enables the identification of harmonic content, noise, and other frequency-related characteristics of a signal.
6. Timing and Synchronization: Oscilloscopes can be used to analyze the timing relationship between multiple signals or to synchronize different instruments or components within a system.
7. Pulse and Serial Data Analysis: With specialized oscilloscope features, users can analyze pulse signals, measure pulse width modulation (PWM), and decode and analyze serial data protocols such as SPI, I2C, UART, and CAN.
8. Power Analysis: Advanced oscilloscopes can be used for power measurements, including voltage, current, power, and power factor calculations. This helps in characterizing power systems, analyzing energy consumption, and optimizing power efficiency.
9. Educational and Research Purposes: Oscilloscopes are widely used in educational institutions and research facilities to teach and conduct experiments related to electronics, signal processing, and electrical measurements.

Note: Different oscilloscopes have varying features and capabilities. Users should refer to the manufacturer’s documentation and specifications to understand the specific functionalities of their oscilloscope model.

Procedures: –

1. See the features and capabilities of the oscilloscopes.
2. Setup by connecting the function generator output to the oscilloscope input using BNC cables. Make sure the oscilloscope is properly powered and grounded.
3. The oscilloscope controls and functions, including time base, voltage scales, triggering, and probe settings. Adjust these settings to obtain a clear and accurate waveform display.
4. Adjust the vertical and horizontal scales to properly view the waveform on the oscilloscope screen. Measure voltage amplitudes, time periods, and frequencies using the cursor and measurement features of the oscilloscope.
5. Connect a resistor to the function generator and observe the waveform on the oscilloscope. Adjust the voltage amplitude and frequency using the function generator controls and observe the corresponding changes on the oscilloscope.
6. By adjusting the trigger level and triggering mode on the oscilloscope. See how triggering helps stabilize and synchronize the waveform display.
7. Use the advanced features of the oscilloscope, such as math functions (e.g., FFT, averaging), waveform storage, and automatic measurements.

Observation: –

Draw the different types wave form obtained in oscilloscope and note down its magnitude, time period and other measurements.

Sl. No.	Time period t (ms)	Frequency f (Hz)	Peak to Peak Voltage V (mV)
1
2
3
4

Calculation: –

• Time Period
• Frequency
• Voltage

Precaution:

1. Make sure all connection terminals should be proper.
2. Verify the connection before starting experiment with concern teacher.

Conclusion: –

                    Written by student.