grating spectrograph

grating spectrograph

A spectrograph in which a diffraction grating is used to produce the spectra.

grating spectrograph

[′grād·iŋ ′spek·trə‚graf]
(spectroscopy)
A grating spectroscope provided with a photographic camera or other device for recording the spectrum.
References in periodicals archive ?
Dr Dworetsky first explained the principle of the spectrograph, showing pictures of the grating spectrograph used on the 24inch (61cm) Allen Telescope at Mill Hill Observatory.
We're currently testing a powerful new grating spectrograph so we can soon start measuring the expansion and rotation velocities of stars and galaxies.