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As an underground rail transit system, the subway has brought great convenience to people's daily lives. However, since all kinds of sewage and wastewater are inevitably produced in the subway, as we...[Details]
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In daily life, from small electric toys to large electric cars, permanent magnet motors can be said to be everywhere. Brushed DC motors, brushless DC motors, and permanent magnet synchronous motors...[Details]
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1 Two-channel DPCA moving target detection principle
The DPCA method requires at least two antennas (a forward antenna and a trailing antenna) to be placed along the flight trajectory of t...[Details]
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On February 25, our company won the bid for the Zhengzhou Public Transport Corporation's 2016 battery-swap pure electric bus turnover battery procurement project, with a bid amount of 34.92 million...[Details]
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Accurately measuring power supply ripple is an art in itself. In the example shown in Figure 1, a junior engineer used an oscilloscope completely incorrectly. His first mistake was using an oscillosc...[Details]
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Working principle of three-phase transformer:
The basic working principle of transformer is electromagnetic induction principle. When AC voltage is applied to the primary winding, AC current ...[Details]
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Use AT89S51 single-chip microcomputer to make a manual counter. Connect a touch switch to the P3.7 pin of the AT89S51 single-chip microcomputer as a manual counting button. Connect a common cathode d...[Details]
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7.2 Clock
Three different clock sources can be used to drive the system clock (SYSCLK):
● HSI oscillator clock 8M
...[Details]
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This virtual instrument solution adopts the high-performance i.MX6DL (Cortex-A9) dual-core CPU, with automotive-grade DDR3 memory and eMMC storage, supports embedded Linux operating system, supports ...[Details]
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Many assistance systems play an important role in modern vehicles, such as lane departure warning and automatic emergency braking. These driver assistance systems continuously send large amounts of d...[Details]
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LCD1602 display basketball timing scorer 51 single chip microcomputer program: #include reg52.h #define uint unsigned int #define uchar unsigned char uchar code table =".. Play ball! ...."; ...[Details]
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On December 24, the construction of three bus charging stations including the West Second Ring Road Bus Charging Station in Baoding City, Hebei Province was completed. After being put into operatio...[Details]
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This article summarizes the design points of a relatively mature circuit obtained after nearly a hundred modifications, including microprocessors, power devices, half-bridge drivers, overcurrent pr...[Details]
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With the continuous development of embedded technology, ARM processors have been widely used due to their high performance, low cost and low energy consumption. This paper mainly focuses on the d...[Details]
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Abstract: In order to realize the functions of film number positioning, automatic counting, automatic film end detection, and film number storage, a film automatic positioning system based on AVR s...[Details]
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