Click👆Reserve the live broadcast to see the wonderful sharing from big company CEOs! Previously, we disassembled two low-cost multimeters, and also disassembled a more standard multimeter. We can see that the design of multimeters is basically similar, with differences in some design details and materials. This time we will dissect a different type of multimeter … Read more
A multimeter is an instrument that can measure various parameters, such as alternating current (AC) or direct current (DC) voltage, AC or DC current, resistance, temperature, capacitance, and more. Modern digital multimeters have adopted digital and logic technologies, becoming smaller in size and featuring more built-in functions. By introducing digital technology, digital multimeters can provide … Read more
In the modern industrial field, precise measuring tools are crucial for ensuring production safety, improving product quality, and achieving efficient operations. The industrial-grade true RMS digital multimeter, as a key tool in the field of electronic measurement, has gradually become an essential tool for electronic engineers and electricians due to its multifunctionality and high precision. … 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
For different channel input signals, sometimes we want one channel signal to meet one condition while another channel waveform meets a different condition, achieving a logical “AND” combination for the channels. For example, how can we trigger channel 1 on a high level while triggering channel 2 on a rising edge? The ZDS2022 oscilloscope not … Read more
Statement: Thisarticle is reprinted from Feidu Academy public account. If there are any issues related to the content, copyright, or other matters, please contact the staff via WeChat (prrox66), and we will handle your request promptly! Submission/Recruitment/Advertisement/Course Cooperation/Resource Exchange Please add WeChat: 13237418207 Comparison of Bipolar and Unipolar Antennas Why Does IQ Mismatch Cause Image … 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
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