Many people have probably done this: disconnecting the “ground” of the oscilloscope’s power supply as shown in the figure below:Initially, I didn’t understand why the “ground” should be disconnected!First, let’s state the conclusion: the ground of the oscilloscope definitely has significance; if it didn’t, the manufacturer wouldn’t provide it!Let’s first look at how the oscilloscope’s … Read more
Our eyes can deceive us, but data never lies. Today, I will teach you how to use DaVinci’s built-in “Oscilloscope Duo”—the waveform and vector scopes—to precisely control the brightness and color of your footage, just like playing a puzzle game. All operations have been tested on the free version of DaVinci 18, so follow along … Read more
What is the purpose of grounding an oscilloscope? Grounding serves as the reference point for all voltage measurements, ensuring that there is a known 0V voltage point in the circuit. This is crucial for ensuring measurement accuracy, suppressing noise interference, and ensuring measurement safety. It can be observed that the power cord of a desktop … Read more
Oscilloscope probes come in many types based on electrical performance and usage scenarios (as shown in the figure below). However, their interface types mainly depend on the design of the oscilloscope’s input channels and the compatibility of the probes. Below are common interface types and their characteristics: 1.BNC Interface Most Common Type, widely used in … Read more
The WaveRunner 8000 is a series of oscilloscopes launched by Teledyne LeCroy. TLC is a well-known testing and measurement company, significantly positioned in the field of testing and measurement instruments such as oscilloscopes and logic analyzers. Their products are widely used in industries such as electronic design, communications, and aerospace, providing engineers and researchers with … Read more
Previously, we wrote an article specifically about oscilloscope probes, and recently a friend asked for a detailed introduction to “differential probes”. Today, I will organize the information.Definition of Differential Probes A differential probe is an electronic measurement tool used foraccurately measuring the voltage difference (differential signal) between two test points rather than the voltage at … Read more
The oscilloscope is an essential tool for all electronic engineers. This document shares the basic structure, working principles, and measurement operations of oscilloscopes, and introduces methods and techniques for using oscilloscopes in scenarios such as signal measurement and power integrity testing. Table of Contents: Illustrated Guide to Oscilloscope Usage and Application Techniques, “In-Depth Understanding of … Read more
The automotive generator is the main power source of a vehicle, functioning to supply power to all electrical devices (excluding the starter) while charging the battery during normal engine operation. The purpose of testing the current and voltage of the automotive generator is to assess the charging rate of the generator, which is related to … Read more
1. Why is it necessary to measure program execution time? Rather than measuring program execution time, it might be more accurate to refer to it as measuring task execution time. The projects we undertake are aimed at achieving specific objectives, thus completing corresponding tasks. Simple projects typically focus on a single task, while more complex … Read more
Recently, I have seen many popular articles using 50-ohm coaxial cables to measure power supply ripple, various styles, and impressive content. I finally took the time to research related articles and would like to share some personal recommendations for measuring ripple & noise with an oscilloscope in my work.When testing power supply waveforms, we often … Read more