PENGENALAN OSILOSKOP

Summary

This educational video introduces viewers to oscilloscopes, explaining their components and how to use them for measuring electrical signals. The video covers the various parts of the oscilloscope, including power buttons, intensity, focus, and time adjustments. It explains how to calibrate the device and interpret the graph on the screen. Viewers learn how to measure both DC and AC voltages, with examples involving a 9V battery and AC power supply. The video also addresses the difference between maximum voltage readings on an oscilloscope and effective voltage readings on a multimeter, promising further lessons on this topic.

Takeaways

• 😀 The oscilloscope is an electronic device used to project the waveform of electrical signals.
• 😀 The OS 310 oscilloscope has various parts, including the on-off switch, indicator light, intensity, and focus controls.
• 😀 The intensity control adjusts the brightness of the oscilloscope's display.
• 😀 The focus control fine-tunes the clarity of the display's light.
• 😀 The 'timer' and 'depth' controls manage time and depth settings for signal measurements.
• 😀 The horizontal axis (Div) is used for measuring time, while the vertical axis measures voltage (Volts/div).
• 😀 Calibration is important to ensure the oscilloscope displays accurate waveforms. A straight line is expected after calibration.
• 😀 The oscilloscope has a position control to adjust the waveform position both vertically and horizontally.
• 😀 The AC/DC selector lets you choose the type of wave to measure, with AC for alternating current and DC for direct current.
• 😀 When measuring a battery's voltage, the oscilloscope shows a reading corresponding to the voltage, which can be calculated using the number of vertical divisions on the screen.
• 😀 When measuring AC voltage, the oscilloscope displays the peak voltage (maximum value), while the multimeter measures the effective voltage (RMS).

Q & A

What is the primary function of an oscilloscope?

An oscilloscope is an electronic instrument used to project the shape of electrical signal waves, allowing users to observe and analyze the behavior of electrical signals over time.

What are the main components of an oscilloscope?

The main components of an oscilloscope include the on/off switch, indicator light, intensity control, focus control, time/div knob, volt/div knob, position control, and AC/DC mode selector.

How do you calibrate the oscilloscope?

Calibration involves adjusting the oscilloscope’s settings to ensure the waveform is centered and displayed correctly. This can be done by using the position controls and ensuring the waveform aligns with the grid on the screen.

What is the purpose of the intensity control on an oscilloscope?

The intensity control adjusts the brightness of the waveform displayed on the oscilloscope screen, allowing the user to make the waveform clearer and more visible.

What does the 'time/div' setting on an oscilloscope do?

'Time/div' controls the horizontal axis of the oscilloscope, which represents time. It determines how much time each horizontal division on the screen represents, helping to measure the time period of the signal.

What is the function of the 'volt/div' setting?

'Volt/div' controls the vertical axis, which represents voltage. It determines how much voltage each vertical division on the screen represents, enabling measurement of the signal's voltage.

How do the position controls work on an oscilloscope?

The position controls adjust the position of the waveform on the screen. The vertical position control moves the waveform up or down, while the horizontal position control moves it left or right.

What is the difference between AC and DC modes on an oscilloscope?

AC mode is used for measuring alternating current (AC) signals, while DC mode is used for direct current (DC) signals, such as those from batteries. The AC mode filters out any DC component of the signal, displaying only the AC waveform.

How do you measure DC voltage using an oscilloscope?

To measure DC voltage, connect the oscilloscope probes to the positive and negative terminals of the DC source. The oscilloscope will display the waveform, and the voltage is determined by the height of the waveform relative to the grid divisions.

Why does the oscilloscope display a different voltage value for AC compared to DC?

The oscilloscope displays the peak voltage in AC measurements, which is the maximum voltage observed during the waveform's cycle, while a multimeter measures the effective voltage (RMS) of the AC signal, which is typically lower than the peak voltage.