n. 干涉仪

[化] 干涉仪

[医] 干扰仪

[ noun ]
any measuring instrument that uses interference patterns to make accurate measurements of waves
<noun.artifact>

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 that
word now has a different meaning.
[Webster 1913 Suppl. +PJC]