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The frequency offset measurement method developed in the vector network analyzer can effectively solve the problem of reciprocity difficulties and the need for mixer/converter consistency testing. It...[Details]
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International Energy Network/PV Headlines (PV-2005) learned that on December 20, the State Power Nanjing Automation Co., Ltd. announced the winning candidates for the procurement of household inver...[Details]
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According to foreign media reports, automotive electronics supplier REDTIGER announced the launch of the F77 dash cam, redefining video clarity and safety standards for drivers. The F77 is equipped...[Details]
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This is the relationship between the oscilloscope waveform refresh rate and the displayed waveform on the screen. The refresh rate of the oscilloscope screen is 50-60 Hz. The waveform update rate o...[Details]
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First, let's ask a question: How do you get the measurement of a rectangle in the picture below, that is, do you need more accurate rectangle position parameters? The general method provided by hal...[Details]
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Circuit principle: The figure shows the circuit principle of the audio therapy instrument. Transistor VT1 and R, C phase shift circuit form a sine wave oscillator with an oscillation frequency of ...[Details]
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1. Preemption priority and response priority are actually two priorities contained in an interrupt. The former is a level division of preemption priority, and the latter is a priority division of the...[Details]
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Development platform: AVR128 Transplantation system: uC/OS-II Function: The system establishes two tasks, operating "8 LEDs" and "buzzer" (attached with the schematic diagram of the LED and buzzer ...[Details]
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0 Preface With the rapid development of the automobile market and the increasing awareness of security, people have higher and higher requirements for automobile safety technology. However, the exi...[Details]
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Text/Zhang Zhen Technical support provided by Beijing Zhongsheng Yihua Technology Co., Ltd.
1. Cultural and museum security becomes the focus of construction
By 2014, China's national ...[Details]
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Today, most cell phones, computers and cars are powered by lithium batteries. According to foreign media reports, a new review paper from Hong Kong Polytechnic University shows that the performance o...[Details]
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On December 23, Liquid Flow Energy Storage Technology Co., Ltd. and Shandong Jiuzhou Alibei Anticorrosion Equipment Co., Ltd. (referred to as Jiuzhou Alibei) formally signed a strategic coopera...[Details]
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With the increasing digitalization and networking of work and life, printers have become a must-have in offices. In order to protect the stability of printer operation and the data security of fini...[Details]
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According to the provisions of "Urban Road Lighting Design Standard" CJJ45-2006, high-pressure sodium lamps, metal halide lamps, compact or thin-tube fluorescent lamps can be used as light source...[Details]
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Target-based intelligent video surveillance technology is a new concept proposed by the international surveillance industry. It is an upgrade and extension of the current mainstream camera-based in...[Details]