Encyclopedia

emission spectrometer

emission spectrometer

[i′mish·ən spek′träm·əd·ər]
(spectroscopy)
A spectrometer that measures percent concentrations of preselected elements in samples of metals and other materials; when the sample is vaporized by an electric spark or arc, the characteristic wavelengths of light emitted by each element are measured with a diffraction grating and an array of photodetectors.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Tokyo, Japan, Oct 17, 2005 - (JCNN) - Shimadzu (TSE: 7701) announced its latest model of inductively-coupled plasma (ICP) optical emission spectrometer on October 13.
Shimadzu Releases High-throughput ICP Optical Emission Spectrometer
Arizona State University has an educational Web site on the Thermal Emission Spectrometer. If you want to know what Mars is made of, visit http://marsed.asu.edu, because that's what they're trying to find out too.
Mars for students and teachers
It also carries a thermal emission spectrometer to scan for heat being transferred from the planet to the atmosphere and to map mineral composition, and a magnetometer to gather data that can be used to understand the interior of Mars.
Post Script
A thermal emission spectrometer measures how much heat Martian rocks emit.
Surveyor scores
On the other hand, Surveyor's thermal emission spectrometer has found no evidence of water-altered minerals on the Martian surface.
Exploring the Red Planet: Mars Odyssey set to begin its mission
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