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磨削作为机械加工的重要组成部分,是精密的超精密加工的重要手段。而砂轮不平衡量引起的振动对磨削过程有很大的影响,严重制约着磨削表面质量和精度的提高。传统的砂轮平衡方法是静平衡,这种脱机的平衡方法不方便,而且受平衡导轨精度、平衡芯轴圆度、摩擦力及操纵者技术水平的影响,平衡精度受到一定限制,而且要花费很多时间,尤其是对精密和超精密磨削需要分初平衡、精平衡,并经过多次拆装砂轮,平衡时间长,使用也不方便。此...[Details]
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IT Home reported on December 19 that foreign media MacRumors reported that data from research firm TrendForce showed that the huge sales of Apple’s iPhone 12/Pro models led to a surge in demand...[Details]
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In the development of high-performance radar signal processors, high-speed serial buses are gradually replacing parallel buses. The widely used Xilinx Virtex-6 series FPGA supports a variety of hig...[Details]
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The market is investing in new LED energy-saving bulbs, but they lack the ability to effectively combine dimming functions with optimal performance. Marvell's deep dimming single-stage AC/DC LED driv...[Details]
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The P3 port of the AT89S52 microcontroller has a second function, as shown below: P3.0 RXD (serial interface input) P3.1 TXD (serial interface output) P3.2 INT0 (external interrupt 0 input) P3.3 INT1...[Details]
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When debugging the ZigBee program a few days ago, because global variables were needed, two global variables were defined in a global file, as follows: #ifndef _TC77_H_ #define _TC77_H_ BYTE GetTC77...[Details]
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The latest report released by market research firm IDC shows that the tablet computer and smartphone market in Taiwan in 2020 will be affected by the new coronavirus epidemic, and the total market vo...[Details]
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Jiwei.com News: In recent years, the rapid development of new energy vehicles, new energy power generation and other industries, the changes and replacements in the requirements for electrical equipm...[Details]
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Today, Honor, together with JD.com, China Electronic Video Industry Association and others, held a new product category communication meeting in Beijing with the theme of "Opening the Future Smart Er...[Details]
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1 Introduction
In the power equipment status detection system using infrared imaging technology, the application system is based on the AT89C51 microcontroller and uses the non-contact infrared the...[Details]
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The fuel injector used in automobiles is a simple solenoid valve. When the solenoid coil is energized, suction is generated, the needle valve is sucked up, the spray hole is opened, and the fuel is s...[Details]
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Before the FLUKE DSX2-5000 and DSX2-8000 cable testers are put on the market, they will undergo a series of environmental tests! Including vibration test, high temperature test, low temperature test,...[Details]
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Speaking of Tektronix oscilloscopes, I believe that many electronic engineers are familiar with them. So, in daily operation, do you take care of the daily maintenance and operating precautions of th...[Details]
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1 Design of keyboard driver With the rapid development of electronic information technology, various devices composed of embedded systems have been widely used. Embedded Linux is an open source, sof...[Details]
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Non-contact temperature sensor, also known as infrared temperature sensor, is a sensor that determines the temperature of an object by measuring the infrared radiation emitted from the surface of t...[Details]