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The new filter material filtration performance tester can simulate the use process of filter bags in bag dust collectors, age the filter materials according to standard procedures (usually takes seve...[Details]
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Use an external interrupt 0 to detect the zero-crossing pulse, and then use a timer to generate a pulse. #include reg52.h #define uint unsigned int /*macro definition*/ #define uchar unsigned char /...[Details]
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Abstract: This application note describes the use of a current-sense amplifier along with an optocoupler to extend the operating voltage range up to 1,000 volts for high-voltage applications. The c...[Details]
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Since the resistive touch screen is a sensor, it uses pressure sensing for control and converts the physical position of the touch point (X, Y) in the rectangular area into a voltage representing the...[Details]
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There is Foxconn in the front and Luxshare Precision in the back. The "first brother" of the new and old fruit chains is currently encountering problems related to stocks. Foxconn is having a heada...[Details]
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Compared to incandescent bulbs, LED bulbs can significantly reduce power consumption. With the price drop and the brightness increase, LED bulbs have recently entered people's daily lives. Esp...[Details]
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Gas vortex flowmeter is mainly used for flow measurement of industrial pipeline medium fluid, such as gas, liquid, steam and other media. ...[Details]
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Toyota unveiled a hybrid version of the new Hilander mid-size SUV (U.S. version) at the New York International Auto Show in April 2019, and it will be available on the market from February 2020. Th...[Details]
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1. Place the megohmmeter stably and firmly and clean the surface of the object to be measured to ensure correct measurement. 2. Correct wiring: The megohmmeter has three terminals: line (L), ground (...[Details]
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This is a MCU electronic clock/timer learning board designed by us. It uses 6-bit LED digital tubes to display hours, minutes, and seconds, and uses a 24-hour timing method. You can use buttons to adj...[Details]
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The bottom layer of PLC is single chip microcomputer, which generally uses RAM and ROM to save data. RAM will disappear when power is off, while ROM can still be kept when power is off, unless it i...[Details]
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Amblyopia is the second most common eye disease in children. If the child does not receive timely and effective treatment, not only will he or she have low vision, but he or she will also live in a n...[Details]
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In the early hours of Wednesday morning, Apple officially released the iPad Air 4 tablet. This time, the iPad Air 4 changed its usual monotonous appearance and added three vibrant colors of rose gold...[Details]
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Start learning the knowledge points related to ARM exception interrupt processing from today; first learn the working mode of ARM. ARM processors have 7 operating modes, as shown in the following t...[Details]
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As the third generation of semiconductor lighting sources, LED has the advantages of low operating voltage, low power consumption, high luminous efficiency and long life. Compared with traditional ...[Details]
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