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用圆形LED改制异型或复色LED
常见的圆形塑封发光二极管的直径有φ3、φ3.5、φ4、φ10等多种。其外形如图所示。
图是4-3（b）、（c）、（d）用锉刀和钢锯加工成的发光二极管。加工后需用竹签缠脱脂棉，沾牙膏摩擦抛光。如嫌不光泽，可将整个发光二极管往氯彷液中放一下，叙述提起，然后放在通风的地方晾干，这时LED面貌焕然一新。
图4...[Details]
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With approximately 200 companies participating in the IMS2020 virtual exhibition, Microwave Journal has collected as much information as possible from these companies to summarize the features and pr...[Details]
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Burst Tester There are two types of bursting strength testers: hydraulic bursting and pneumatic bursting. The hydraulic pressure acts on the test sample above the rubber tympanic membrane to burst th...[Details]
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Tianyancha shows that on October 10, the patent for "charging vehicle and charging method" applied by Xiaomi Automobile Technology Co., Ltd. was announced.
The patent abstract shows that the c...[Details]
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“Using NI PXI, we were able to simulate complex drone models in real time with low latency and perfectly simulate the aviation equipment interface.” challenge: Build a system on target hardwa...[Details]
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On October 19, the 2021 Yunqi Conference opened in Hangzhou. In his speech at the main forum, Zhang Yong, Chairman and CEO of Alibaba Group, said that after 12 years of reincarnation, the Yunqi Confe...[Details]
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On April 24, Chen Lang, deputy director of the Neijiang Municipal People's Congress Standing Committee, deputy chairman of the Sichuan Provincial Committee of the China Democratic League, and chairman...[Details]
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Sony has announced that it will hold a new Xperia phone launch conference at 3:00 p.m. on May 11, and is expected to launch the new flagship Xperia 1 IV and mid-range Xperia 10 IV.
In a Sony p...[Details]
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0 Introduction
There are two forms of catalytic cracking regeneration process: complete regeneration and incomplete regeneration. For the incomplete regeneration process, the flue gas cont...[Details]
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Many people have this question: What is the autonomous driving solution based on BEV (Birds Eye View)? There is no unified definition in the academic community for this question, but based on my de...[Details]
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The operational amplifier is the most widely used and basic component in analog integrated circuits. It can be used to achieve functions such as amplification and filtering, and is widely used in e...[Details]
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Introduction: A brief discussion of the four working modes of uninterruptible power supply: normal operation, battery operation, bypass operation and bypass maintenance. 1. Normal operation mode ...[Details]
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With the continuous improvement of intelligent manufacturing technology, the core motor technology of the entire industry has also ushered in new opportunities. However, we should clearly realize tha...[Details]
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This paper proposes a hardware circuit design based on the STC single-chip microcomputer learning platform, which uses a new single-chip microcomputer model STC12C5410AD, and adds some serial inter...[Details]
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Preface
This paper uses the Sunplus microcontroller
to design a portable multifunctional real-time physiological parameter monitor with the function of playing MP3, which can improve the quality...[Details]
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