attenuation

/ə,tenju'eiʃn/

Thân thiện

The engineer adjusted the attenuation on the audio mixer.

Definition

1. Noun:
   • The property of something that has been weakened or reduced in thickness or density: The process or result of becoming thinner, less dense, or less substantial.
   • Weakening in force or intensity: A reduction in the strength, power, or magnitude of something, such as a signal, sound, or effect.
   • (Physics/Engineering) A decrease in amplitude or energy: Specifically, the gradual loss of intensity or power as a wave, signal, or beam travels through a medium.

Examples of Usage

• General Reduction:
  • The attenuation of the fabric made it unsuitable for heavy-duty use. (The thinning of the fabric made it unsuitable for heavy-duty use.)
  • The constant erosion caused the attenuation of the coastline over centuries.
• Reduction in Force/Intensity:
  • There was a noticeable attenuation in the volume of the sound as we moved farther from the stage.
  • The new policy led to an attenuation of public enthusiasm for the project.
• Technical/Scientific Context:
  • Signal attenuation is a critical factor in designing long-distance fiber optic cables.
  • The material is prized for its low attenuation of radio waves.

Advanced Usage

• "Attenuation coefficient": (Physics/Engineering) A measure of how easily a material or medium can reduce the intensity of a wave or particle beam passing through it.
  • Scientists calculated the attenuation coefficient to determine the shield's effectiveness.
• "Frequency-dependent attenuation": A phenomenon where the degree of weakening varies with the frequency of a signal or wave.
  • High-frequency sounds experience greater attenuation in air than low-frequency ones.

Variants and Related Words

• Attenuate (verb): To make or become weaker, thinner, or less intense.
  • The filter is designed to attenuate specific noise frequencies.
• Attenuated (adjective): Weakened, reduced in force or virulence; also, slender or thin.
  • An attenuated vaccine uses a weakened form of the virus.
  • The sculpture featured attenuated figures.
• Attenuator (noun): A device used to reduce the amplitude or power of a signal without distorting its waveform.
  • The engineer installed an attenuator to control the signal strength.

Synonyms

• Reduction: The action of making something smaller or less in amount, degree, or size.
• Weakening: The process of making or becoming weaker in force, intensity, or health.
• Diminution: A reduction in the size, extent, or importance of something.
• Damping: (Technical) A reduction in the amplitude of oscillations or vibrations.

Related Phrases/Compounds

• Signal attenuation: The loss of signal strength during transmission.
• Attenuation distortion: A type of signal distortion where different frequency components are weakened by different amounts.
• Path attenuation: The total weakening of a signal along its propagation path.

Học thuật

Noun

1. the property of something that has been weakened or reduced in thickness or density
2. weakening in force or intensity
   • attenuation in the volume of the sound

Từ đồng nghĩa

• fading