Optics. a device that separates a beam of light into two ray beams, usually by means of reflection, and that brings the rays together to produce interference, used to measure wavelength, index of refraction, and astronomical distances.
Astronomy. an instrument for measuring the angular separation of double stars or the diameter of giant stars by means of the interference phenomena of light emitted by these stars.
更多interferometer例句
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.
Many diverse applications of the interferometer have been developed, as, for example, in thermometry.
In the interferometer the approach of the small ball to the large one produced a displacement of seven whole fringes.