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As one of the essential accessories of an oscilloscope, the current probe plays an extremely important role. There are many brands of current probes. In addition to the standard probes of the oscillo...[Details]
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According to news on July 3, network security company SonarSource discovered in a recent study that there is a vulnerability CVE-2023-28424 in the Gentoo Linux distribution, which hackers can exploit...[Details]
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1. Introduction
Ultrasonic transducer (UT) refers to a device that realizes the mutual conversion between sound energy and electrical energy within the ultrasonic frequency range. It is mainly...[Details]
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1. Disposable battery: thrown away after use and cannot be reused.
Carbon zinc batteries, alkaline batteries, paste zinc manganese batteries, cardboard zinc manganese batteries, al...[Details]
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0 Introduction
The Global Positioning System (GPS) is the second generation satellite navigation system of the United States. It was developed on the basis of the Transit satellite navigat...[Details]
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At the 2021 Hangzhou Yunqi Conference, Banma Smart Driving Co-CEO Zhang Chunhui officially released the self-developed AliOS intelligent driving system kernel. The kernel is a microkernel architectur...[Details]
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Introduction to ARM7 LPC2138
Philips' 32-bit ARM7 LPC2138 microcontroller has powerful storage space, embedded with 32 KB on-chip static RAM and 512KB Flash memory; it can realize in-system pro...[Details]
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Abstract: At present, infrared spectrophotometers have been widely used in petroleum, chemical industry, medicine, environmental protection, teaching, material science, public security, national de...[Details]
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According to China News Service, yesterday (26), the head of the Shenzhen Municipal Bureau of Industry and Information Technology revealed at the Huaqiangbei 5G life experience event that the number ...[Details]
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The pumping of most gas lasers is achieved by gas discharge of the working material. As we all know, gas discharge has a negative resistance characteristic, that is, as the discharge current increa...[Details]
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Many LCD modules use resistive touch screens, which are equivalent to sensors that convert physical positions into voltage values representing X and Y coordinates. Usually, there are 4-wire, 5-wi...[Details]
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According to incomplete statistics from LED inside, from the beginning of 2019 to May 2020, the total amount of projects in mainland China with Mini/Micro LED as the investment direction has reached ...[Details]
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Recently, at the 2021 Work Mobilization Meeting of Suzhou Industrial Park, Bosch announced an investment of 360 million yuan to expand its microelectromechanical systems (MEMS) sensor testing project...[Details]
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With the continuous development of digital signal processing technology and integrated circuit technology, the reliability of digital signal processors is getting higher and higher, and their applica...[Details]
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Electronic switch arc extinguishing circuit
Figure 1. Electronic switch arc extinguishing circuit
On the basis of thyristor V1 bypass arc extinguishing, a thyristor V2 is connected in serie...[Details]