1. Understanding the MF47 Multimeter 2. Explanation of the MF47 Multimeter Scale Serial No. Name Function 1 Ω Resistance Scale Used to read resistance values 2 –(DCV) ～(ACV) AC and DC Voltage Scale Used to read AC and DC voltage values 3 AC 10V Scale(Red Line Scale) Specifically for reading AC voltage values less than10V … Read more
New friends click on the blue text “Mechanical Industry Press E Vision” to follow 1. Identifying the Start and End of Motor Windings with a Multimeter When the six output terminals of a three-phase asynchronous motor are lost or unclear, or when the windings are rewound, it is necessary to determine which two output terminals … Read more
A digital multimeter can be used to measure DC and AC voltage, DC and AC current, resistance, capacitance, frequency, batteries, diodes, and more. The overall circuit design is centered around a large-scale integrated dual-slope A/D converter, equipped with full-process overload protection circuits, making it a high-performance tool and an essential instrument for electricians. 1. Precautions … Read more
Previously, we discussed common analog and digital electronics used by electronic engineers, which received a lot of attention from our fans. Today, we will mainly talk about the measurement instruments commonly used by electronic engineers, hoping to help our friends. Let’s take a look together! 1. Multimeter A multimeter is one of the most basic … Read more
When testing a signal with an output impedance of 50Ω using a Pico oscilloscope, a 50Ω to 1MΩ direct terminal is required. Recently, during an on-site test with a client, I found that the waveform oscillated severely, as shown in Figure 1 (red box), making it impossible to conduct accurate data analysis. Figure 1 Severe … Read more
Hello everyone, in the previous episode of our 100-episode practical video series, we shared the pulse width search function of the ZDS2022 oscilloscope. The oscilloscope’s search function is practical and convenient. However, some users are still not very familiar with the search function of the ZDS2022 oscilloscope. In fact, the ZDS2022 oscilloscope has a powerful … Read more
Introduction: In previous videos, we introduced the ROLL mode in the horizontal time base. Now, let’s take a look at the X-Y mode in the horizontal time base. What exactly is it? Figure 1 Oscilloscope Screen Display in X-Y Mode In simple terms, the X-Y mode converts voltage-time display into voltage-voltage display. In fact, in … 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
Hello everyone, the oscilloscope, as a versatile measuring instrument, is fundamentally designed for measurement statistics. The oscilloscope on your lab bench may have been used many times with various functions, but have you truly paid attention to its core measurement statistics function? Is this function genuinely usable and reliable? The ZDS2022 oscilloscope, after incorporating most … Read more
Improving the accuracy of an oscilloscope is not difficult, but attention to detail is required. This article will explore various methods to enhance oscilloscope measurements. Using Multiple Grids to Maintain Dynamic Range A common use of an oscilloscope (4 channels) is to sacrifice one-quarter of its dynamic range by attenuating the amplitudes of several signals … Read more