Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Optical_spectrometer> ?p ?o }
- Optical_spectrometer abstract "An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. The variable measured is most often the light's intensity but could also, for instance, be the polarization state. The independent variable is usually the wavelength of the light or a unit directly proportional to the photon energy, such as reciprocal centimeters or electron volts, which has a reciprocal relationship to wavelength. A spectrometer is used in spectroscopy for producing spectral lines and measuring their wavelengths and intensities. Spectrometer is a term that is applied to instruments that operate over a very wide range of wavelengths, from gamma rays and X-rays into the far infrared. If the instrument is designed to measure the spectrum in absolute units rather than relative units, then it is typically called a spectrophotometer. The majority of spectrophotometers are used in spectral regions near the visible spectrum.In general, any particular instrument will operate over a small portion of this total range because of the different techniques used to measure different portions of the spectrum. Below optical frequencies (that is, at microwave and radio frequencies), the spectrum analyzer is a closely related electronic device.Spectrometers are used in many fields. For example, they are used in astronomy to analyze the radiation from astronomical objects and deduce chemical composition. The spectrometer uses a prism or a grating to spread the light from a distant object into a spectrum. This allows astronomers to detect many of the chemical elements by their characteristic spectral fingerprints. If the object is glowing by itself, it will show spectral lines caused by the glowing gas itself. These lines are named for the elements which cause them, such as the hydrogen alpha, beta, and gamma lines. Chemical compounds may also be identified by absorption. Typically these are dark bands in specific locations in the spectrum caused by energy being absorbed as light from other objects passes through a gas cloud. Much of our knowledge of the chemical makeup of the universe comes from spectra.".
- Optical_spectrometer thumbnail Spectrometer_schematic.gif?width=300.
- Optical_spectrometer wikiPageExternalLink cover.asp.
- Optical_spectrometer wikiPageExternalLink howtoworkwithspe00browrich.
- Optical_spectrometer wikiPageID "29293".
- Optical_spectrometer wikiPageLength "11404".
- Optical_spectrometer wikiPageOutDegree "77".
- Optical_spectrometer wikiPageRevisionID "707214735".
- Optical_spectrometer wikiPageWikiLink Abscissa.
- Optical_spectrometer wikiPageWikiLink Absolute_units.
- Optical_spectrometer wikiPageWikiLink Amici_prism.
- Optical_spectrometer wikiPageWikiLink Astronomical_spectroscopy.
- Optical_spectrometer wikiPageWikiLink Astronomy.
- Optical_spectrometer wikiPageWikiLink Caesium.
- Optical_spectrometer wikiPageWikiLink Category:Electronic_test_equipment.
- Optical_spectrometer wikiPageWikiLink Category:German_inventions.
- Optical_spectrometer wikiPageWikiLink Category:Laboratory_equipment.
- Optical_spectrometer wikiPageWikiLink Category:Measuring_instruments.
- Optical_spectrometer wikiPageWikiLink Category:Signal_processing.
- Optical_spectrometer wikiPageWikiLink Category:Spectrometers.
- Optical_spectrometer wikiPageWikiLink Charge-coupled_device.
- Optical_spectrometer wikiPageWikiLink Chemistry.
- Optical_spectrometer wikiPageWikiLink Circular_dichroism.
- Optical_spectrometer wikiPageWikiLink Collimator.
- Optical_spectrometer wikiPageWikiLink Computer.
- Optical_spectrometer wikiPageWikiLink Diffraction.
- Optical_spectrometer wikiPageWikiLink Diffraction_grating.
- Optical_spectrometer wikiPageWikiLink Dispersion_(optics).
- Optical_spectrometer wikiPageWikiLink Dispersive_prism.
- Optical_spectrometer wikiPageWikiLink Electromagnetic_spectrum.
- Optical_spectrometer wikiPageWikiLink Electronvolt.
- Optical_spectrometer wikiPageWikiLink Far_infrared.
- Optical_spectrometer wikiPageWikiLink File:Units_IR_spectrum.png.
- Optical_spectrometer wikiPageWikiLink File:Units_visible_spectrum.png.
- Optical_spectrometer wikiPageWikiLink Fraunhofer_lines.
- Optical_spectrometer wikiPageWikiLink Gamma_ray.
- Optical_spectrometer wikiPageWikiLink Gustav_Kirchhoff.
- Optical_spectrometer wikiPageWikiLink Hubble_sequence.
- Optical_spectrometer wikiPageWikiLink Hubbles_law.
- Optical_spectrometer wikiPageWikiLink Incandescence.
- Optical_spectrometer wikiPageWikiLink Intensity_(physics).
- Optical_spectrometer wikiPageWikiLink Joseph_von_Fraunhofer.
- Optical_spectrometer wikiPageWikiLink Light.
- Optical_spectrometer wikiPageWikiLink List_of_light_sources.
- Optical_spectrometer wikiPageWikiLink Main_sequence.
- Optical_spectrometer wikiPageWikiLink Mass_spectrometry.
- Optical_spectrometer wikiPageWikiLink Microwave.
- Optical_spectrometer wikiPageWikiLink Monochromator.
- Optical_spectrometer wikiPageWikiLink Photodetector.
- Optical_spectrometer wikiPageWikiLink Photographic_film.
- Optical_spectrometer wikiPageWikiLink Photographic_paper.
- Optical_spectrometer wikiPageWikiLink Photometry_(optics).
- Optical_spectrometer wikiPageWikiLink Photomultiplier.
- Optical_spectrometer wikiPageWikiLink Photon.
- Optical_spectrometer wikiPageWikiLink Phytochrome.
- Optical_spectrometer wikiPageWikiLink Polarization_(waves).
- Optical_spectrometer wikiPageWikiLink Polychromator.
- Optical_spectrometer wikiPageWikiLink Prism_spectrometer.
- Optical_spectrometer wikiPageWikiLink Radio.
- Optical_spectrometer wikiPageWikiLink Refracting_telescope.
- Optical_spectrometer wikiPageWikiLink Refraction.
- Optical_spectrometer wikiPageWikiLink Relative_units.
- Optical_spectrometer wikiPageWikiLink Robert_Bunsen.
- Optical_spectrometer wikiPageWikiLink Rubidium.
- Optical_spectrometer wikiPageWikiLink Scanning_mobility_particle_sizer.
- Optical_spectrometer wikiPageWikiLink Sodium.
- Optical_spectrometer wikiPageWikiLink Sodium-vapor_lamp.
- Optical_spectrometer wikiPageWikiLink Spectral_density.
- Optical_spectrometer wikiPageWikiLink Spectral_line.
- Optical_spectrometer wikiPageWikiLink Spectrophotometry.
- Optical_spectrometer wikiPageWikiLink Spectroradiometer.
- Optical_spectrometer wikiPageWikiLink Spectroscopy.
- Optical_spectrometer wikiPageWikiLink Spectrum_analyzer.
- Optical_spectrometer wikiPageWikiLink Stellar_classification.
- Optical_spectrometer wikiPageWikiLink Ultraviolet.
- Optical_spectrometer wikiPageWikiLink Wavelength.
- Optical_spectrometer wikiPageWikiLink Wavenumber.
- Optical_spectrometer wikiPageWikiLink X-ray.
- Optical_spectrometer wikiPageWikiLink File:Optical_spectrometers.png.
- Optical_spectrometer wikiPageWikiLink File:Simple_spectroscope.jpg.
- Optical_spectrometer wikiPageWikiLink File:Spectrometer_schematic.gif.
- Optical_spectrometer wikiPageWikiLinkText "Optical spectrometer".
- Optical_spectrometer wikiPageWikiLinkText "optical spectrometer".
- Optical_spectrometer wikiPageWikiLinkText "spectrometers".
- Optical_spectrometer wikiPageWikiLinkText "spectroscope".
- Optical_spectrometer wikiPageWikiLinkText "spectroscopic".
- Optical_spectrometer name "Spectroscope".
- Optical_spectrometer otherNames "Spectrograph".
- Optical_spectrometer related Mass_spectrograph.
- Optical_spectrometer related Mass_spectrometry.
- Optical_spectrometer wikiPageUsesTemplate Template:Citation_needed.
- Optical_spectrometer wikiPageUsesTemplate Template:Clear.
- Optical_spectrometer wikiPageUsesTemplate Template:Dmoz.
- Optical_spectrometer wikiPageUsesTemplate Template:Infobox_laboratory_equipment.
- Optical_spectrometer wikiPageUsesTemplate Template:Main.
- Optical_spectrometer wikiPageUsesTemplate Template:More_footnotes.
- Optical_spectrometer wikiPageUsesTemplate Template:Reflist.
- Optical_spectrometer wikiPageUsesTemplate Template:Wiktionary.
- Optical_spectrometer subject Category:Electronic_test_equipment.
- Optical_spectrometer subject Category:German_inventions.