from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of several optical, acoustic, or radio frequency instruments that use interference phenomena between a reference wave and an experimental wave or between two parts of an experimental wave to determine wavelengths and wave velocities, measure very small distances and thicknesses, and calculate indices of refraction.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of several instruments that use the interference of waves to determine wavelengths and wave velocities, determine refractive indices measure small distances, temperature changes, stresses, and many other useful measurements
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for measuring small movements, distances, or displacements by means of the interference of two beams of light; -- formerly also called also refractometer, but that word now has a different meaning.
from The Century Dictionary and Cyclopedia
- n. An instrument for the measurement of lengths by means of the phenomena resulting from the interference of two rays of light.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any measuring instrument that uses interference patterns to make accurate measurements of waves
Michelson's interferometer is capable of an application no less significant than those which we have already considered.
The instrument in question, known as the interferometer, had previously yielded a remarkable series of results when applied in its various forms to the solution of fundamental problems.
Chu was one of the originators of the atom interferometer, which is based on his Nobel Prize-winning development of cold laser traps.
We have built an interferometer, which is a series of telescopes which are coordinated to operate as a single instrument on top of Mauna Kea.
In principle we could have a radio interferometer which is on the scale of the cis-lunar or even the inner solar system.
When complete, ALMA will have at least 66 high-tech antennas operating together as an "interferometer", working as a single, huge telescope probing the sky in the millimetre and submillimetre wavelengths of light.
The first two Alma antennas have been linked up as an "interferometer"
"That," he explained, as I continued to gaze, "is one of the latest forms of the spectroscope, known as the interferometer, with delicately ruled gratings in which power to resolve the straight, close lines in the spectrum is carried to the limit of possibility.
NASA has invested a lot of money in building its interferometer, so shouldn't we use that for awhile to search for dust disks around nearby stars instead of just shutting it down?
NASA contributed about $40M in construction costs and put about the same amount of money into developing the interferometer instrument that uses both telescopes.