Nov 28 2018
Warm hints: This article contains about 3000 words and reading time is about 15 min. Introduction The insulation resistance meter is a special instrument for measuring the maximum resistance value, insulation resistance, absorption ratio and polarization index. Its scale unit is megger, which has
Nov 26 2018
Warm hints: This article contains about 5000 words and reading time is about 20 min. IntroductionBefore we understand resistors, we need to know what a resistor is. The resistance is often abbreviated as R, which is a basic property of a conductor and is related to the size, material, and temperatu
Nov 22 2018
Warm hints: This article contains about 3000 words and reading time is about 15 min. Introduction In electronic circuits, capacitors are used to block DC through AC, as well as to store and discharge charge to act as a filter to smooth out the output ripple signal. Small-capacity capacitors are c
Nov 20 2018
IntroductionA solid state disk (SSD) useing a solid state electronic memory chip array, is composed of a control unit and a storage unit (FLASH chip, DRAM chip). The specifications and definitions, functions, and usage methods of the SSD are exactly the same as those of the ordinary hard disk. The s
Nov 15 2018
IntroductionWith the rapid development of electronic technology, modern electronic devices have been widely used in various fields of human life. At present, electronic equipment has been in a period of rapid development, and this process is still continuing at an increasing rate. The wide applicati
Nov 9 2018
Warm hints: This article contains about 3000 words and reading time is about 15 min. Summary As one of the key technologies to build the Internet of Things, RFID has attracted much attention because of its long-distance reading and high-storage capacity. It can not only he
Nov 6 2018
Warm hints: This article contains about 3000 words and reading time is about 15 min. Summary This article is divided into two parts： Overhaul Integrated Circuits: Detection Techniques And Disassembly Methods and Methods and techniques of Integrat
Nov 5 2018
Warm hints: The word in this article is about 3000 words and reading time is about 15 minutes. Summary Biometric recognition is the most convenient and safe identification technology at present. It does not need to carry any certificates or
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