Many diverse applications of the interferometer have been developed, as, for example, in thermometry.
The interferometer has much refined the indications of the balance.
The resolving power of the interferometer is found to be somewhat more than double that of a telescope of the same aperture.
By applying the interferometer method to Capella, arc distances of much less than one-twentieth of a second of arc were measured.
In the interferometer the approach of the small ball to the large one produced a displacement of seven whole fringes.
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.