échelle
- noun
- /eɪˈʃɛl/
- Specialized
- The astronomer used an échelle to analyze the star's spectrum.
Examples
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A new échelle was installed to improve the telescope's ability to separate close spectral lines.
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Upgrading the échelle allowed the laboratory to detect much finer spectral details.
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The astronomers used an échelle to analyze the starlight with high precision.
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Can you pass me the échelle for the experiment?
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The astronomers used an échelle to analyze the starlight with high precision.
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Upgrading the échelle allowed the laboratory to detect much finer spectral details.
-
A new échelle was installed to improve the telescope's ability to separate close spectral lines.
Synonyms
A machine that records the different colours of light from something for scientific study
A tool that splits light into colours for study
A device of stacked plates that spreads light into colors
An instrument that uses a prism to split light into separate colors for study
How Fine
- Specialized
- Specialized
- Specialized
- Specialized
Surface Forms
Etymology
Échelle is also the name for a type of spectrograph, named after the word for 'ladder' (scala) because it breaks light into many fine 'steps' or lines, like rungs on a ladder. So an échelle spectrograph helps scientists see very small details in the light.