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
Jitter is the short-term variation of a digital signal’s timing relative to its nominal value. There are two main types of jitter: random jitter and deterministic jitter. Random jitter is unbounded, meaning its value continues to increase as the measurement duration increases, and it is related to random processes such as noise. Deterministic jitter, on … Read more
Today, I will share with you the scrolling mode of the ZDS2022 oscilloscope. When it comes to scrolling mode, you might find it unfamiliar. Let’s first understand what scrolling mode is all about. Figure 1 Screen Display in Scrolling Mode In scrolling mode, the oscilloscope continuously samples the waveform without any dead time. The waveform … Read more
A digital real-time oscilloscope is a type of digital oscilloscope (DSO), also known as a “single-shot” oscilloscope, which captures signals in real-time at a sampling rate far exceeding the signal bandwidth (generally over 2 times, ideally over 5 times), making it easy to observe high-speed single-shot signals. There are three important technical specifications that define … Read more