Spectrometer
Article
A spectrometer is an instrument that separates and measures components of a physical spectrum. Most commonly it records the intensity of electromagnetic radiation as a function of wavelength, frequency, or energy.
Optical spectrometers may use prisms, diffraction gratings, interferometers, filters, or detectors to separate radiation. Other instruments measure mass-to-charge ratio, particle energy, magnetic resonance, or acoustic frequency.
Important characteristics include spectral range, resolution, sensitivity, calibration, signal-to-noise ratio, and acquisition speed. The instrument's design depends on the type of radiation and the measurement required.
Spectrometers are used in laboratories, observatories, spacecraft, environmental monitoring, medicine, manufacturing, chemistry, physics, and materials analysis.
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- Source / publisher: Wikipedia
- URL type: WWW
- Credits: Wikipedia
- URL: https://en.wikipedia.org/wiki/Spectrometer