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introduction
In engineering practice, ultrasonic waves are often used to measure distances because of their strong directivity, slow energy consumption, and long propagation distance in th...[Details]
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1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
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Novaled, a German company, has successfully developed p-type and n-type field effect transistors based on a single-layer pentacene semiconductor layer by using its own p-type and n-type dopants. This ...[Details]
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The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]
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With the development of science and technology, the improvement of living standards and the acceleration of the pace of modern cities, people are increasingly pursuing more convenient, practical an...[Details]
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The relationship between time and frequency
There is no conceptual difficulty in understanding what happens when a steady-state DC signal is applied to a voltmeter. However, if the signal ...[Details]
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In view of the fact that a single ordinary type of fire detection alarm can no longer meet the demand, the use of multiple sensors to comprehensively collect various abnormal information before a f...[Details]
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0 Introduction
The pipeline detector is a special portable instrument that uses the secondary field principle to detect underground metal pipelines. It generally includes a transmitter and...[Details]
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0 Introduction
As a major component of intelligent transportation, vehicle navigation and positioning has become a research hotspot recently . With the global positioning system (GPS) being u...[Details]
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Differential circuits can effectively remove common-mode noise in high-frequency and high-speed designs. Differential devices and transmission lines are not only commonly used in high-speed digital...[Details]
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Reverse osmosis is a membrane separation technology. The pore size of the reverse osmosis membrane is basically the same as that of water molecules. Only particles of similar size to water molecules c...[Details]
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With the clinical application of electrocardiogram technology and the development of electronic technology, electrocardiogram, as a relatively mature and widely used technology in biomedical measur...[Details]
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Introduction: This topic comes from a project of Beijing Puji General Company. Since the company’s existing stand-alone spectroscopic instrument products (such as 1810, T6, etc.) use parallel port...[Details]
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1 Introduction
The auxiliary power supply system of electric locomotive is an important part of the locomotive. It is responsible for the power supply of various devices except the main ci...[Details]
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Nowadays, integrated circuits and computer systems are becoming more and more complex. To adapt to this change, designers need to consider power consumption requirements in the main design paramete...[Details]
Microcontroller MCU
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