Many electricians are accustomed to using a shake table to measure the condition of motors in their daily work, which is undoubtedly a common and relatively safe testing method. Today, I will share how to use a multimeter to measure the condition of motors, so that in case a shake table is not available, you … Read more
Hello everyone, I am your hardware engineer friend. Today, we are going to discuss a problem that has troubled countless engineers: How do we find the breakpoints on circuit boards filled with numerous interfaces? You must have seen them: driver motherboards, IO modules… with interfaces as numerous as spider legs, and traces as dense as … Read more
A multimeter, also known as a multi-tester or volt/ohm meter, is a multifunctional and multi-range measuring instrument. It is the most basic tool in the field of electronic testing and is widely used in the industry. It is a measurement tool that personnel in the electronics industry must master. Multimeters are divided into analog and … Read more
Are You Really Using the Multimeter Correctly? A multimeter, also known as a multifunction meter, is an essential measuring instrument in electrical and electronic fields. It is primarily used to measure voltage, current, and resistance, making it a versatile and multi-range measuring device. Generally, a multimeter can measure DC current, DC voltage, AC current, AC … Read more
Correctly using a multimeter not only allows for quick identification of faults but also prevents damage to electrical devices and the multimeter itself. Below are some tips for using a multimeter.Before measuring, check the range; do not measure without checking the range. After measuring, switch to the empty range. The dial should be level, and … Read more
In the field of electrical work, the multimeter is undoubtedly one of the most commonly used tools. However, even though many electricians deal with multimeters daily, they may not truly understand some of the special symbols on them. Today, we will unveil the mystery behind the ‘△’ symbol on multimeters. Multimeters are powerful tools, but … Read more
Second Topic:Difference Between Average Response Principle and True RMS Principle FLUKE’s digital multimeters and clamp meters differ between average response and true RMS. For example, the well-known F15B+/F17B+ series are average response multimeters, while the F115C/F117C series are true RMS multimeters. So what are the differences between them? How should users make their choice? What … Read more
Click the “Practice English Listening“ above to follow me (↑Click above to listen to today’s audio; the audio player now supports pause, fast forward, and rewind functions.) Listening Reference Text ↓↓↓ 1854, the birth of the elevator—this invention changed the way we live. One cabin in one shaft on one rope traveling up and down, … Read more
A multimeter is a multifunctional and multi-range measuring instrument, generally including functions such as ammeter, voltmeter, and ohmmeter. Below are the basic steps and precautions for using a multimeter: Preparation Before Use 1. Check the instrument: Ensure that the multimeter is in good condition and that the dial is clearly visible. 2. Familiarize with functions: … Read more
Click ↑ for automotive repair cases and follow for updates to obtain the complete timing guide Highly versatile, applicable to all circuit boards! 1. How to repair circuit boards without schematics? 1. You must have a clear mental image. You need to thoroughly understand the principles of some typical circuits and be very familiar with … Read more