Astrophysics (index)

Spectrometry

(measuring the strengths of different electromagnetic wavelengths)

Spectrometry is virtually a synonym for Spectroscopy or Spectrography. For more information, see Spectroscopy.

It originated as a general term for the use of a Spectrometer, that measures Intensity as a function of Wavelength, with Spectroscope a more specific term for an instrument you "look through" (like a microscope or telescope) and Spectrograph for one that produces graphical output. Now virtually all data is collected digitally, easily displayed or printed graphically, so the term chosen for a specific instrument is insignificant.

Mass Spectrometry is an analogous study of the relative amounts of particles based on their mass, i.e., the use of a Mass Spectrometer. In this usage, the convention is to use the word Spectrometry rather than the others.


(science,measurement,astronomy,color,EMR)
http://en.wikipedia.org/wiki/Spectroscopy

Referenced by:
Cassini
Mass Spectrometer
Spectrography
Spectroscopy

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