When observing the waveform on the crystal oscillator pins with an oscilloscope, it often happens that the crystal oscillator waveform is not visible on the screen or the characteristics of the waveform are incorrect. This article explains the correct method for measuring the crystal oscillator waveform with an oscilloscope through practical operations. Through the previous … Read more
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
1. International Leading Brands Tektronix 1. Core Advantage: Global leader in oscilloscope probe technology, with products covering all scenarios. 2. Representative Products: 1.P5200A High Voltage Differential Probe: Bandwidth of 50MHz, supports ±6000V differential voltage, common mode rejection ratio (CMRR)>60dB@100MHz, suitable for industrial frequency converters and power equipment testing. 2.TriMode™ P7500 Series: Integrates differential, single-ended, and … 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
When talking about oscilloscopes, one cannot help but recall the time spent testing at Samsung.The first version of the product’s PCB was followed by time spent in the lab, racing against product cycles, with continuous validation and testing during that period.It has been a long time since I last tested; I feel a bit nostalgic … Read more
Editor’s Note: This article is primarily compiled from Keysight’s related content on probes. Oscilloscopes have expanded their application range due to the existence of probes, enabling online testing and analysis of the electronic circuits being measured, as shown in the figure below: Function of Oscilloscope Probes The selection and use of probes need to consider … Read more
This article will introduce the types and uses of various probes. What is a probe: An oscilloscope is the most commonly used measuring instrument by electronic engineers, and the oscilloscope probe is undoubtedly the most commonly used accessory for the oscilloscope. The oscilloscope probe is the electronic component that connects the measured circuit to the … Read more
Understanding Oscilloscope Probes The measured signal cannot be directly connected to the oscilloscope, so a device is needed to establish an electrical connection between the test point and the oscilloscope. Depending on the needs, this device can be a simple wire or a more complex circuit. The device responsible for linking the test point and … Read more
01 Introduction How to correctly use instruments and meters is a necessary requirement for every engineer, especially for oscilloscopes. Many people do not pay attention to isolation and other restrictions, leading to incidents such as exploding probes. So what unsafe operations are there when using oscilloscopes? 02 Unsafe Operation: Floating Measurements Some engineers have a … Read more