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Wavelength gauge
Answer for the clue "Wavelength gauge ", 14 letters:
interferometer
Alternative clues for the word interferometer
Word definitions for interferometer in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Interferometer \In`ter*fe*rom"e*ter\, n. [See Interfere and -meter.] (Physics) 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 ...
WordNet
Word definitions in WordNet
n. any measuring instrument that uses interference patterns to make accurate measurements of waves
Wiktionary
Word definitions in Wiktionary
n. (context physics English) 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. ...
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
"instrument for measuring the interference of light waves," 1897, a hybrid from interfere + meter (3).
Usage examples of interferometer.
The whole of Gulf City was girded with antennae, telescopes, interferometers, and signal devices.
It had been a photo-observatory, but now the mirror, photon multipliers, spectroscope gratings ana interferometers were crushed under sudden new arrivals of equipment.
In 2009 ESA hopes to launch its Infrared Space Interferometer, not to image distant planets but to find out what their atmospheres are made of by looking for telltale absorption lines in their spectra.
It basically gave us a Michelson's stellar interferometer with much better resolution.