Understanding Oscilloscope Cursors

Introduction

An oscilloscope is a powerful tool used to visualize and analyze electronic signals. One of the key features of an oscilloscope is the ability to use cursors to accurately measure the waveform. In this article, we will explore the different types of cursors and how to use them effectively.

Vertical Cursors

Vertical cursors are used to measure the amplitude of a waveform. These cursors are typically positioned on the vertical axis of the display and can be moved up or down to align with the desired point on the waveform. Once the cursor is in position, the precise voltage level is displayed on the screen. This information can be used to determine the gain of an amplifier or the voltage level of a signal.

Horizontal Cursors

Horizontal cursors are used to measure the time between two points on a waveform. These cursors are typically positioned along the horizontal axis of the display and can be moved left or right to align with the desired points on the waveform. Once the cursor is in position, the precise time interval is displayed on the screen. This information can be used to measure the frequency of a signal, the rise or fall time of a pulse, or the time delay between two signals.

Dual Cursors

Dual cursors combine the functionality of both vertical and horizontal cursors. They allow the user to measure both the amplitude and time of a signal between two points on the display. These cursors are typically used to measure the period, duty cycle, or phase shift of a waveform.

Conclusion

Cursors are an essential tool when using an oscilloscope. With the ability to measure both amplitude and time, they provide accurate and precise measurements of electronic signals. Understanding how to use each type of cursor effectively enables users to analyze and troubleshoot circuits more efficiently.