spectrograph

/'spektrougrɑ:f/

Thân thiện

The astronomer examines a spectrograph of a distant star.

Definition

1. Noun:
   • A photographic record of a spectrum: A spectrograph is a permanent image, typically on film or a digital sensor, that displays the intensity of light at different wavelengths, creating a visual representation of a spectrum.
   • A spectroscope by which spectra can be photographed: A spectrograph is also the scientific instrument itself, a type of spectroscope equipped with a camera or detector to record spectra.

Examples of Usage

• Noun:
  • The astronomer analyzed the spectrograph to determine the star's chemical composition.
  • The laboratory uses a high-resolution spectrograph to capture detailed spectra of materials.

Advanced Usage

• "Mass spectrograph": A specific type of spectrograph used to separate and record ions by their mass-to-charge ratio, forming the basis of mass spectrometry.
  • The forensic team used a mass spectrograph to identify the unknown substance.

Variants and Related Words

• Spectrographic (adj): Relating to or produced by a spectrograph.
  • The spectrographic analysis revealed new details.
• Spectrography (n): The technique or process of using a spectrograph.
  • Spectrography is essential in modern astrophysics.

Synonyms

• Spectrometer: An instrument for measuring properties of light over a specific portion of the spectrum, often used interchangeably with spectrograph when it records data.
• Spectroscope: An optical instrument for forming and examining spectra, especially by visual observation (a spectrograph typically adds a recording capability).

Related Phrases

• "To obtain/take a spectrograph": The action of recording a spectrum using the instrument.
  • The researchers needed to obtain a spectrograph of the plasma emission.

Học thuật

Noun

1. a photographic record of a spectrum
2. a spectroscope by which spectra can be photographed

Từ đồng nghĩa

• spectrogram