Training

Location:Training / Hot Applications / Wireless Communication / Electromagnetic fields and electromagnetic waves / 37

You can log in to your eeworld account to continue watching：
37
Login

Duration：44 minutes and 12 seconds
Date：2017/11/04

Uploader：老白菜

Introduction

keywords： Electromagnetic fields Electromagnetic waves University of Electronic Science and Technology of China Wang Yuan

Electromagnetic waves are a form of motion of electromagnetic fields. Electricity and magnetism can be said to be two sides of the same coin. A changing electric field will produce a magnetic field, and a changing magnetic field will produce an electric field. The changing electric field and the changing magnetic field constitute an inseparable unified field, which is the electromagnetic field. The propagation of the changing electromagnetic field in space forms electromagnetic waves. The changes in electromagnetism are like the gentle breeze blowing on the water surface to generate water waves, so it is called Electromagnetic waves are also often called radio waves.

You Might Like

Recommended Posts

I used pwm and wrote the program according to the routine, but there is a problem: TBCCR0 = 4096-1; // PWM Period TBCCTL4 = OUTMOD_7; // CCR4 reset/set TBCCR4 = 512; // CCR4 PWM duty cycle TBCCTL5 = OUTMOD_7; // CCR5 reset/set TBCCR5 = 32; // CCR5 PWM duty cycle TBCTL = TBSSEL_2 + M; shzps Microcontroller MCU

K60 PDB KEIL Programming: 1. Experts, I would like to ask, what is the so-called delay of the programmable delay module PDB? It should be different for ADC and DAC modules, right? Then for different operation modules, which st; Monkey嘭嘭 NXP MCU

How many IRQs should be added to the registry?: #define AT91C_ID_IRQ1 ((unsigned int) 30) // Advanced Interrupt Controller (IRQ1) I use IRQ1, which is defined as up. So how much IRQ should I add to the registry? 1E or 30? I tried 1E and it didn't w; 洗了八吨水 Embedded System

Selection criteria for semiconductor diodes (cqcwc): Selection criteria of diodes (cqcwc) Selection criteria of diodes in circuit design 1. Selection based on circuit function: Germanium detection diodes should be used for high-frequency detection circu; fighting Analog electronics

Has anyone used AMIS-30543 to drive a stepper motor?: Is the PWM frequency of the AMIS-30543 driving the stepper motor fixed? How to detect the current? What is the function of the back EMF output pin?; 沈婷婷 Motor Drive Control（Motor Control）

Problem with Uart_GetIntNum()!: A simple program y=Uart_GetIntNum(); Uart_Printf("%d",y); For example, if I enter 233 in the hyperterminal, the return value is 2. What's going on?; FSDAFSDAFTERT Embedded System

Recommended Content

Hot VideosMore

Hot ArticlesMore

Circuit

可能感兴趣器件

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews

Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函

京公网安备 11010802033920号