英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

harmonics    音标拼音: [hɑrm'ɑnɪks]
n. 和声学

和声学

harmonics
*谐波 调和

harmonics
n 1: the study of musical sound

Harmonics \Har*mon"ics\ (-[i^]ks), n.
1. The doctrine or science of musical sounds.
[1913 Webster]

2. pl. (Mus.) Secondary and less distinct tones which
accompany any principal, and apparently simple, tone, as
the octave, the twelfth, the fifteenth, and the
seventeenth. The name is also applied to the artificial
tones produced by a string or column of air, when the
impulse given to it suffices only to make a part of the
string or column vibrate; overtones.
[1913 Webster]


请选择你想看的字典辞典：
单词字典翻译
Harmonics查看　Harmonics　在百度字典中的解释百度英翻中〔查看〕
Harmonics查看　Harmonics　在Google字典中的解释Google英翻中〔查看〕
Harmonics查看　Harmonics　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Harmonic - Wikipedia
    The nodes of a vibrating string are harmonics Two different notations of natural harmonics on the cello First as sounded (more common), then as fingered (easier to sightread) In physics, acoustics, and telecommunications, a harmonic is a sinusoidal wave with a frequency that is a positive integer multiple of the fundamental frequency of a periodic signal The fundamental frequency is also
  • Fundamental Frequency And Harmonics: What Are They?
    What Are Harmonics? Harmonics are defined as an unwanted higher frequency component that is an integer multiple of the fundamental frequency Harmonics create a distortion in the fundamental waveform Harmonics typically have a lower amplitude than the fundamental frequency What is Amplitude?
  • Harmonics and Harmonic Distortion in an Electrical System
    What Are Harmonics in AC Power Supplies Harmonics in an AC power systems are unwanted sinusoidal voltages or currents with frequencies that are larger multiples of the systems fundamental frequency These harmonic frequencies cause distortion to the sinusoidal waveforms shape especially in three-phase power systems Harmonics and harmonic distortion is the difference between the ideal
  • Harmonics (electrical power) - Wikipedia
    Harmonics in power systems are generated by non-linear loads Semiconductor devices like transistors, IGBTs, MOSFETs, diodes, etc are all non-linear loads Further examples of non-linear loads include common office equipment such as computers and printers, fluorescent lighting, battery chargers and also variable-speed drives
  • An engineer’s guide to harmonics - eeworldonline. com
    Harmonics degrade power quality, reduce the operational lifespan of equipment, and can compromise system stability This FAQ provides a technical overview of harmonics, their primary sources, and the industry standards established for their control An ideal ac power supply delivers a pure
  • Fundamental Frequency and Harmonics - The Physics Classroom
    Each natural frequency that an object or instrument produces has its own characteristic vibrational mode or standing wave pattern These patterns are only created within the object or instrument at specific frequencies of vibration These frequencies are known as harmonic frequencies, or merely harmonics At any frequency other than a harmonic frequency, the resulting disturbance of the medium
  • What Is a Harmonic? Sound, Physics, and Math Explained
    A harmonic is a vibration whose frequency is a whole-number multiple of a base frequency, called the fundamental If a guitar string vibrates at a fundamental frequency of 100 Hz, its harmonics occur at 200 Hz (2nd harmonic), 300 Hz (3rd harmonic), 400 Hz (4th harmonic), and so on This pattern, called the harmonic series, shapes how musical instruments sound, how engineers design power
  • What exactly are harmonics and how do they appear?
    From reading so many sources online, I still cannot grasp why a different waveforms have harmonics For example: when designing a silly amplitude modulation (AM) circuit that puts a square wave from a microcontroller in to an antenna, how are harmonics generated? The signal is just "on" or "off", how are there first, third, and fifth harmonics and why do they get weaker? I've heard
  • Harmonics in Electrical Systems: Causes, Effects, and Solutions
    Harmonics in electrical systems cause waveform distortion, overheating, and equipment failure Learn how to detect, analyze, and reduce harmonic effects
  • What are harmonics? - The Ethan Hein Blog
    These organized spaces are called orbitals, and they are to the electron field what harmonics are to guitar strings The electron field has waves, and those waves undergo interference, producing standing waves that are the three-dimensional equivalent of the guitar string’s one-dimensional harmonics





中文字典-英文字典  2005-2009