Introduction In the failures of medical equipment, issues often arise from certain key chips, leading to abnormal control signals and erratic device actions. In these situations, the oscilloscope becomes a powerful tool, allowing for the rapid identification of key signals and the localization of the root problem. This article analyzes a fault repair case of … Read more
To measure the functionality of an oscilloscope, the trigger module is generally a point of focus. In fact, the triggers used internally in oscilloscopes are divided into analog triggers and digital triggers. The ZDS2022 oscilloscope uses a digital trigger, which results in low signal jitter and high trigger sensitivity, with dynamic adjustment available! We discovered … Read more
The ZDS2022 oscilloscope’s hundred technical exchange meetings are still in full swing. Through communication with a certain customer, it was learned that one of their samples may have abnormal waveforms at the moment of power-up. Today, we will use the ZDS2022 to capture the power-on signal multiple times and observe the real-time comparison of multiple … Read more
During the repair process of welding machines, we often encounter some difficult issues, and at this time, we will use the oscilloscope. Case:NBC270Gas shielded welding with manual welding The fault phenomenon is that the gun outputs gas and feeds wire normally, but does not melt the wire. After excluding problems with the main control board, … Read more
[Title] The motion of charged particles in an electric field is a key and challenging topic in electric field problems. This part integrates knowledge of kinematics, Newton’s laws, curved motion, and energy, making it an excellent question to assess students’ comprehensive abilities. The principle of the oscilloscope is a typical problem within this content, and … Read more
01 What Went Wrong to Study Passive Probes It all started with a question: Can a 1X passive probe be used to match a 50-ohm or 75-ohm system like a coaxial cable? Experienced individuals would immediately answer no, because even a 1X probe has a significant resistor in series. I happened to have a discarded … Read more
Contributed by: Science and Technology Innovation Research Office Edited by:Office My name is Zhao Zihao, a student in Grade 7, Class 60, who loves electronic production. I have many tools at home, such as multimeters, clamp meters, and soldering irons. Once, the model aircraft teacher Yang Yue mentioned oscilloscopes, which sparked my great interest. I … Read more
Basic Fault Diagnosis PicoScope 4262 is a high-resolution oscilloscope, which is very suitable for general fault diagnosis. It has two input channels, allowing simultaneous display of signals in both time and frequency domains. The spectral view provides some automatic measurement data, including distortion and noise. Dynamic Range In most digital oscilloscopes, the analog-to-digital converter has … Read more
An eye diagram, as the name suggests, is a graphical representation that resembles an eye. How is it formed? This brings us to the persistence mode of an oscilloscope. The refresh rate of our naked eyes is only 60Hz, which sometimes makes it difficult to detect occasional abnormal signals. The persistence mode can superimpose and … Read more
An oscilloscope is a primary instrument for time-domain measurements. Currently, most digital oscilloscopes include approximately 25 built-in measurement parameters as standard supplements. By adding application customization options, the number of parameters can be increased to over a hundred. Even with such a vast measurement capability, some measurements must utilize existing measurement tools to derive results. … Read more