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The magnetic flap level gauge is an instrument specially developed for liquid level measurement based on the principles of magnetic pole coupling, Archimedes (law of buoyancy) and other principles, w...[Details]
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Metering Devices and Applications Selection of Differential Pressure Gas Flowmeters Hu Haiyan (Metering Station of Technical Inspection Station of Hekou Oil Production Plant, Shengli Oilfield, Shando...[Details]
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1 Use a multimeter to determine the positive and negative poles of the speaker First, set the pointer multimeter to the DC 0~5mA range, and then connect the two test leads to the two solder tabs of t...[Details]
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At the beginning of 2024, the price war for new energy electric vehicles is "on the verge of breaking out", and new and old car companies have followed suit one after another. At the same time, as a ...[Details]
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Although the circuit diagram and C program are almost all from online resources, but just a few minutes ago today, when the 8 green LEDs lighted up smoothly in sequence, I have to admit that it was an...[Details]
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Japan's Honda and Nissan are in talks to form a strategic partnership, with Mitsubishi Motors also expected to join, the latest move by Japanese automakers to pool resources to catch up with overse...[Details]
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//Use STC15W404S MCU to test and successfully drive TM1650 chip 4-bit common cathode digital tube display circuit //Chen Yongfei on January 18, 2016 #include reg52.h #include intrins.h #define...[Details]
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Is it feasible to use AC contactor to realize automatic switching between inverter and mains ? The inverter is high frequency 3000w. It is unreliable to use two AC contactors for interlocking to real...[Details]
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AT91SAM9X25 configure NFS boot #setenv bootargs console=ttyS0,115200 root=/dev/nfs nfsroot=192.168.1.156:/home/lee/MYIR_SAM9X5/nfsroot ip=192.168.1.127:192.168.1.156:192.168.1.1:255.255.255.0:AT91S...[Details]
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This paper introduces the Fourier algorithm and SVM (support vector machine) into the short-term load forecasting of power grids. For loads with large fluctuations, the Fourier algorithm is used to...[Details]
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1. Header file: #include 2. Predefined: sbit LED = P1^0 // defines bit 0 of port P1 as LED Note: The writing of "P1^0" is different from A51 (A51 is P1.0). P1 is a group of ports, and the port nu...[Details]
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It consists of a hand-operated generator, a meter and three terminals (i.e. l: line end, e: ground end, g: shielding end). "g" (ie. shielding end) is also called a protective ring. Selection of rat...[Details]
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I have been working on DSP before. DSP has nested interrupts. In order to ensure that the terminal is not lost in the case of multiple interrupts, the interrupt will be re-enabled after reading the h...[Details]
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The biggest advantage of 4K is its high resolution. However, video surveillance is a system. 4K has brought higher requirements for transmission, storage, and intelligent analysis, and requires relev...[Details]
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Whether ordinary motors can use frequency converters to adjust speed is a very professional question. Before answering this question, we first need to understand what ordinary motors are, what freq...[Details]