Focus on “Jicheng Training”, specializing in automation education for 14 years It is generally believed that the inverter output voltage is 380 volts, and direct measurement should not be a problem. However, in reality, most multimeters cannot obtain correct readings when testing the inverter output voltage, and in some cases, the multimeter may even burn … Read more
Chapter 25: Answers to Common Questions About Digital Multimeters The digital multimeter is the most basic and indispensable tool for electrical engineers and technicians. In the field, due to various factors such as testing environment, electrical atmosphere, tested equipment, and signal type, users often encounter significant deviations in test results or even damage to the … Read more
This article mainly introduces the design principles of digital multimeters and the calculation methods for average value and true RMS value, explaining the defects of the average value calculation method and the calculation method for true RMS value of AC signals superimposed with DC signals. It emphasizes the necessity of using multimeters with true RMS … 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