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相关概念视频

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Propagation of Waves01:07

Propagation of Waves

When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Interference: Path Lengths01:10

Interference: Path Lengths

Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
Clipper Circuit01:18

Clipper Circuit

A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...

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相关实验视频

Updated: Jul 12, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

在可刺激介质中设计和控制波传播模式.

Tatsunari Sakurai1, Eugene Mihaliuk, Florin Chirila

  • 1Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA.

Science (New York, N.Y.)
|May 4, 2002
PubMed
概括

化学反应-扩散系统中的时空反能够精确控制波浪传播模式. 这种方法允许设计和操纵复杂的波浪行为在可刺激的介质.

科学领域:

  • 化学动力学 化学动力学
  • 非线性动力学是一种非线性动力学.
  • 复杂的系统复杂的系统.

背景情况:

  • 化学反应扩散系统表现出复杂的时空动态.
  • 波传播是这些系统的一个基本现象.
  • 控制波浪行为对于理解和应用至关重要.

研究的目的:

  • 研究时空反在控制波传播中的作用.
  • 探索用于操纵可刺激介质中的波浪行为的设计原则.
  • 分析波浪与边界和其他波浪的相互作用.

主要方法:

  • 使用化学反应-扩散模型与时空反.
  • 实施反调节的兴奋度梯度来引导波传播.
  • 结合相互作用术语来研究波碰撞和边界效应.

主要成果:

  • 经过反引导的波浪传播的复杂模式.
  • 通过兴奋度梯度观察到受控的波方向性.
  • 成功模拟波与边界和其他波的相互作用.

结论:

  • 时空反在设计和控制波浪行为方面提供了显著的灵活性.

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Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

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Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
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Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

相关实验视频

Last Updated: Jul 12, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
06:51

Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations

Published on: August 21, 2018

  • 这种方法提供了一个强大的工具来操纵可刺激媒介中的动态.
  • 这些发现对理解模式形成和波浪现象有意义.