[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
An oscilloscope is an instrument that transforms electrical signals into visible images, allowing engineers to intuitively and accurately observe electrical phenomena. Oscilloscopes are widely used in many experiments, and they are also instruments that can test voltage. There are many types of oscilloscopes, and the methods of measurement vary. When engineers use this product to … Read more
Before learning how to use an oscilloscope to reduce noise, let’s first understand how noise in oscilloscopes arises. Many people who have just transitioned from analog oscilloscopes to digital oscilloscopes may complain that the waveforms measured by their new oscilloscope are not as clear as those from their old analog oscilloscope, even doubting whether their … Read more
Power supply ripple testing is a crucial parameter in power quality detection, but accurately measuring power supply ripple has become a challenge for engineers. How can we overcome this problem? In fact, after searching for it thousands of times, the solution is right there in front of us. Because a DC regulated power supply is … Read more
May 2020 Introduction to the Equipment The pico automotive oscilloscope perfectly combines hardware and software, making it one of the most advanced automotive fault diagnostic devices available today. As shown in Figure 1, it mainly consists of the oscilloscope host (such as pico scope 4425, pico scope 4823, etc.), diagnostic software (pico scope 6 automotive … Read more