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An international research team composed of scientists from Austria, the United States and Switzerland has developed the first super-reflector in the mid-infrared wavelength range, which is expected...[Details]
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Today, the editor will talk about some issues that primary users of mobile power supplies should pay attention to when purchasing, as well as some common sense issues that should be paid attention ...[Details]
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1 Introduction
At present, most variable frequency power supplies use sinusoidal pulse width modulation, the so-called SPWM technology. Most of its control circuits are implemented using analog...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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FCZ-III arrester discharge counter tester is also called lightning strike counter tester, arrester discharge counter calibrator and lightning strike counter calibrator. FCZ-III arrester discharge cou...[Details]
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When measuring high-value resistance in the megohm range, the impedance value displayed by the E4980A Precision LCR Meter is much lower than the DC impedance of the device under test. How can I measu...[Details]
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Ultrasonic flowmeters are used in various places and fields to measure flow. How should they be maintained during and after use? What measures can be taken to extend their service life? The following...[Details]
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Abstract: With the trend of the Internet of Everything, buildings, as places where people spend more than half of their daily lives, need to highlight their application value. Improving the intellige...[Details]
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The circuit shown is a single-tuned loop intermediate frequency amplifier. The DC operating point of transistor 3DG6C is V CE = 8V, IE = 2 mA; the operating frequency f 0 = 10.7 MHz; the tuning loop ...[Details]
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Equipment used before modification: host Pioneer DEH-P1; amplifier: Magron 4*100W; front speaker: Pioneer C-130R; rear speaker: Alpine 694A. Modification purpose: requires pure vocals, violin, pia...[Details]
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On May 10, Velodyne Lidar, a lidar manufacturer, launched the Intelligent Infrastructure Solution, designed to solve some of the most challenging and prevalent infrastructure problems. The solution c...[Details]
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This course will introduce the concept of physical signals, why they are needed and how to convert them into analog/electrical signals through devices such as sensors, and then convert them back in...[Details]
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FIIL is an earphone brand co-founded by rock musician Wang Feng. Its Chinese name is Fei'er. Its products include true wireless earphone series, portable star series neck-hanging earphones, Diva se...[Details]
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After rapid development in recent years, autonomous driving has entered a slow ramp-up period from various technological breakthroughs at the beginning. The reasons for this slow pace are mainly conc...[Details]
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With the vigorous development of social productivity and the improvement of people's living standards, the development and competition in the catering industry have become increasingly fierce. Its ...[Details]