interferometer

/,intəfiə'rɔmitə/

Thân thiện

A scientist adjusts an interferometer in the laboratory.

Definition

1. Noun:
   • A scientific instrument for measuring waves: An interferometer is any measuring instrument that uses the phenomenon of interference, specifically the patterns created when waves overlap, to make extremely precise measurements of waves (such as light, radio, or sound waves) and their properties.

Usage and Examples

• Noun:
  • Astronomers used an interferometer to measure the diameter of the distant star with high accuracy.
  • The laboratory's optical interferometer can detect minute changes in the wavelength of the laser.
  • Building an interferometer requires precise alignment of its mirrors and detectors.

Advanced Usage and Concepts

• "Astronomical interferometer": A type of interferometer that combines light from multiple telescopes to achieve the resolving power of a much larger single telescope.

  • The Very Large Telescope Interferometer (VLTI) in Chile allows astronomers to see fine details on celestial objects.

• "To operate/use an interferometer": The act of working with this instrument.

  • The team learned how to operate the interferometer to test the new optical coatings.

Variants and Related Words

• Interferometry (n): The technique or process of using an interferometer.

  • Radio interferometry is essential for creating detailed images of galaxies.

• Interferometric (adj): Relating to or involving an interferometer.

  • The interferometric data confirmed the theoretical model.

Synonyms

• Wave-measuring instrument: A general term for devices that measure wave properties.
• Interference apparatus: A technical term describing equipment based on wave interference.

Related Phrases and Terms

• "Fringe pattern": The pattern of light and dark bands (interference fringes) produced by an interferometer, which is analyzed to make measurements.

  • The clarity of the fringe pattern determines the accuracy of the interferometer's reading.

• "Path difference": A key concept in interferometry referring to the difference in distance traveled by two combining waves, which creates the interference pattern.

  • The interferometer adjusts the path difference to shift the fringe pattern.

Học thuật

Noun

1. any measuring instrument that uses interference patterns to make accurate measurements of waves