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The spectrum analyzer will display the noise level when no signal is added. The noise generated by the spectrum analyzer itself comes mostly from the first stage of the intermediate frequency amplifi...[Details]
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Abstract: This paper introduces a design of a multi-node home security system with AT89S52 single-chip microcomputer as the control core, which transmits information through DTMF public telephone ...[Details]
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What are the methods for measuring voltage with an oscilloscope? An oscilloscope (virtual oscilloscope) can observe the waveform curves of various signal amplitudes changing over time, and can also m...[Details]
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Recently, Tesla hacker @greentheonly said that Tesla may adopt 5G connection. At the same time, he also browsed the code updated after 2020.44 OTA and found that Tesla’s internal system will be compa...[Details]
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The problem of surface damage detection
Accurate and rapid detection of surface defects of parts is directly related to product quality. If unqualified products are not removed in time, it wi...[Details]
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2019 is the year of exploration and pilot of the State Grid's ubiquitous power Internet of Things. As the vanguard of the State Grid system, State Grid Jiangsu Electric Power Co., Ltd. has comprehe...[Details]
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V-cone flowmeter thermocouple protection tubes are mainly divided into three categories:
1. Metal protection tube
Metal protection tubes have high mechanical strength and good thermal condu...[Details]
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In order to achieve precise positioning of the XYZ three-dimensional workbench, a three-dimensional micro-displacement control system based on STM32F103VCT6 single-chip microcomputer and stepper ...[Details]
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ams OSRAM and Longjing Optoelectronics jointly develop Vegalas™ RGB laser modules to support LBS AR modules and make smart glasses lighter
Longjing
Optoelectronics released a d...[Details]
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System functions Use the serial port of C8051F to transmit and receive data to MAX485. hardware design Serial port chip MAX485 control circuit schematic diagram software design The following pa...[Details]
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1. You must choose a metal shell product: The car inverter power supply has a large power and generates a lot of heat. If the internal heat cannot be dissipated in time, it will affect the life of th...[Details]
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Lithium-ion batteries can be used in small electronic devices as well as larger applications such as electric vehicles and power grids, and they can easily meet the requirements of various sizes, vol...[Details]
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In 2019, more than one-third of global mobile users used 4G technology, and 5G accounted for less than 3% of the total. This means that 5G still has a long way to go before it can be adopted by the m...[Details]
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Fundamentals of Digital Electronic Technology systematically introduces the basic theories, design methods and typical applications of digital circuits. Contents include: Fundamentals of digital circu...[Details]
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With the rapid development of science and technology, the global awareness of environmental protection has risen in recent years. How to effectively develop energy-saving and power-saving technolo...[Details]
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