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1.1 Basic units
(1) Meter?
The distance travelled by light in a vacuum during a time interval of 1/299 792 458 second.
(2) Kilogram?
Unit of mass, equal to the mass of the int...[Details]
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Classification and application scenarios of AC servo systems
AC servo systems can be divided into two types according to the type of motor: asynchronous servo systems and synchronous servo sys...[Details]
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Syringe air tightness tester Syringe air tightness tester It uses a 5.7-inch (120×90) single-color LCD touch screen with Chinese menu display. The nominal capacity of the syringe, the lateral force a...[Details]
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On May 26, Apple announced that Christopher "CJ" Moore, a former Tesla Autopilot engineer who joined Apple's car project last year, has left Apple and joined Luminar, a lidar company based in Orlando...[Details]
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The electric mechanical active roll control system from Schaeffler has been put into mass production, thus opening a new chapter in chassis technology. Before this, there were also such s...[Details]
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According to the news from Kanjian High-tech, recently, it was learned from the Xi'an High-tech Zone "Silk Road Software City" industry planning investment promotion conference that in the first thre...[Details]
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I have always written 51 in C before, so I wanted to experience the feeling of writing 51 in assembly. Therefore, I will start another series. I hope everyone will learn with me. If there are any sho...[Details]
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Flexible wearable electronic devices have many unique advantages, such as high conformability to the skin, high data extraction accuracy, and low motion artifacts, which help meet the needs of pers...[Details]
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In one week, I went from being an illiterate who had never used an STC microcontroller and didn't know what an SPI interface was to making the entire communication process of nRF24L01 completely bug-...[Details]
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China Energy Storage Network News:
Author | Pei Zheyi, Vice Chairman of the Energy Storage Committee of the China Energy Research Association, Professor-level Senior Engineer of the State G...[Details]
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Recently, Dongmu Co., Ltd. released its 2020 performance forecast, and it is expected that the operating income in 2020 will be approximately 330 million yuan, an increase of 113.845 million yuan com...[Details]
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Technical solutions and functional modules for high-power LED lamp driver
大功率发光二极体用於一般照明是本世纪的新课题,其节能、安全、长寿命的综合优势将引发下一轮照明产业的革命。但是,大功率发光二极体是低电压单向导电器件,正常工作时的正向压降3-4伏。要用於一般照明必须解决电源变换的问题。
There are f...[Details]
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1 Introduction
In modern industrial production and high-precision testing, we need a fairly accurate frequency to help determine the performance indicators of the equipment. And we hope to be a...[Details]
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With the development of social economy and the continuous increase of electrical equipment, various industries have greater and greater requirements for the capacity of switching power supply modul...[Details]
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With the continuous improvement of people's living standards and the development of intelligent home appliances, the smart home appliance market will continue to accelerate in the future, and t...[Details]