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Apple only released the iPhone 12 series in October this year, and then officially went on sale in mid-October. As a result, the iPhone 12 became the best-selling 5G mobile phone in October two weeks...[Details]
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传统PID控制的电机调速系统技术成熟，结构简单，较稳定可靠，应用较为广泛，但也存在一些缺点，例如无法有效地克服传动对象和负载参数的大范围变化以及非线性因素对系统造成的影响，因而不能满足高性能和高的要求。随着模糊控制技术的成熟，应用越来越广泛，人们也开始将它应用于电机调速中。使用模糊控制技术后，能充分利用其非线性结构自寻优等各种功能，从而显著提高系统的鲁棒性（robustness）。此外，由于...[Details]
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Ultrasonic waves can be used to effectively detect moving objects in a certain space. It is easy to install and has good detection effects. This article introduces a person detection device designe...[Details]
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Central topics:
Chip Capacitor Model
Test fixture
Solution:
Network analyzer measurement combined with certain calibration methods
At present, there is no suitable RF band ...[Details]
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With the order from the on-site commander-in-chief, the primary circuit water pressure test of Unit 5 of Fuqing Nuclear Power Plant of China National Nuclear Corporation, the world's first Hualong On...[Details]
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introduction
The three-phase asynchronous motor is an induction motor. During operation, its rotor and stator magnetic fields rotate in the same direction but at different speeds, and there is...[Details]
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The oscilloscope is the right-hand man of our electronic engineers. Playing with the oscilloscope well is one of our necessary skills. The ancients have long taught us not only to know what it is, bu...[Details]
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So far, lighting companies have been committed to the LED bulb business, and have been competing fiercely to quickly seize the market for "bulb sockets" such as E26 for ordinary bulbs and E17 for smal...[Details]
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Samsung did not release the Galaxy Watch 4 at the just-concluded MWC 2021, but instead announced its next-generation watch operating system - One UI Watch. At this year's I/O Developer Conf...[Details]
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Beijing time on January 11th, Intel and Meta teamed up to develop a new method. If your computer configuration is an AX1690 Wi-Fi chip, you can connect the Oculus Quest headset directly to the gaming...[Details]
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In modern air combat, optoelectronic countermeasure equipment plays an important role in war. Compared with active detection systems such as radar, infrared detection and tracking systems have the ad...[Details]
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(4) According to news on the 25th, Huawei and ZTE responded to the announcement by the US Federal Communications Commission (FCC) in November last year that it would ban US telecom operators from usi...[Details]
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Given that MEMS processes are derived from photolithographic microelectronics processes, it is natural to consider using IC design tools to create masks for MEMS devices. However, there are fundament...[Details]
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VR故名思义就是VARIABLE RESISTOR可变电阻,一般机器是运用在调整信号大小用的,在音响上用在音量控制,左右平衡,高低音旋鈕…….都是.這种元件是以连续式的调整步进(滑动式),稳定性非常差,易受温度 .湿度的影响造成不稳定,其它请自行参阅电子元件的书籍相关说明,VR在新品時因为大部份的人耳对於声音较迟钝无法查觉,但是用过一段時间后你会觉得左右声道的声音会漂,无法将乐器定位准确,...[Details]
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Recently, the 1MW vanadium battery energy storage system provided by Tianfu Energy Storage to a customer has successfully passed strict quality inspections, fully complies with established industry...[Details]
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