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Continuously measuring patient vital signs such as heart rate, respiratory rate and blood oxygen saturation (SpO2) is critical to providing effective care, and the ability to measure these signs simu...[Details]
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Component selection: Capacitor Cl is 20p, C2 is 100p, C3 and C7 are 820p, C4 is 56p, C5 and C8 are 47p, and C6 is 47μF/50V. Inductor Ll is 22μH (color code inductor), L2 is 0.3μH. Resistor Rl is 1.6k...[Details]
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Microwave filter is a device used to separate microwave signals of different frequencies. Its main function is to suppress unwanted signals so that they cannot pass through the filter and only...[Details]
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The low-temperature humidity control function of the China Automotive Research Institute's environmental wind tunnel has been officially launched, with excellent performance indicators and meeting ...[Details]
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1. Experimental tasks Use P1.0 to output 1KHz and 500Hz audio signals to drive the speaker as an alarm signal. It is required that the 1KHz signal sounds for 100ms and the 500Hz signal sounds for 200...[Details]
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Recently, Horizon officially announced that it will release a new chip, the Journey 5 chip, on the 29th of this month. Horizon Robotics officially stated that it has successfully developed a proto...[Details]
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As the fourth generation of green, energy-saving, power-saving and long-life lighting fixtures, LED light sources have emerged, attracted widespread attention and developed rapidly. The current LE...[Details]
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1. Introduction
When electronic and electrical equipment is working normally, it radiates electromagnetic interference to the surrounding space, which may affect the operation of other equipment....[Details]
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Minxin Co., Ltd. recently issued an announcement stating that the company recently received a "Civil Ruling" issued by the Intermediate People's Court of Qingdao City, Shandong Province. According to...[Details]
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There are no shortcuts on the road to the Internet of Vehicles. I can't forget that my roommate in college opened WeChat day and night, pulled down the menu, and clicked on the jump, just to beat t...[Details]
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The STC microcontroller has its own internal reference voltage, which has been calibrated when the microcontroller is produced and can be read in RAM and ROM respectively. (1) Read in ROM When re...[Details]
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A note on the assistance provided by Ye Wanli, an employee of the State Grid Fujian Sanming Power Supply Company
There is not a single tree on the plateau, and the Changtang is covered with sn...[Details]
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Abstract:
This paper combines the characteristics of high-precision crystal oscillator without random error and GPS second clock without cumulative error, and uses GPS measurement and moni...[Details]
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2. Basic situation of embedded industry companies
The following survey is aimed at the development status of many product R&D companies in the embedded industry, which is closely related to techn...[Details]
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Traffic accidents are more likely to occur at night and in rainy and foggy weather. How can we improve safety in such situations? Unlike lidar or millimeter-wave radar, thermal imaging is not affec...[Details]
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