Fr.: instrument altazimutal
Fr.: instrument astronomique
A device used to observe and study → astronomical objects.
1) sâz; 2) sâzâl
1) An object used for producing music.
From O.Fr. instrument, from L. instrumentem "a tool, apparatus, furniture," from instruere "to arrange, furnish," from → in- + struc- (var. s. of struere "to put together") + -tus p.p. suffix.
1) Sâz "(musical) instrument; apparatus; harness; furniture,"
from sâzidan, sâxtan "to build, make, fashion; to adapt, adjust, be fit"
(from Mid.Pers. sâxtan, sâz-, Manichean Parthian s'c'dn "to prepare,
to form;" Av. sak- "to understand, to mark," sâcaya- (causative)
irang-e sâzâl, xatâ-ye ~
Fr.: erreur instrumentale
The correctable part of the inaccuracy of a measuring instrument.
Of, relating to, or performed by or with one or more instruments.
Adj. of → instrument.
Fr.: élargissement instrumental
The broadening of a point source caused by the response functions of the telescope and the instrument used.
Fr.: flexion d'instrument
An image defect caused by the mechanical flexure of materials; for example the curved-shape image of a long slit in a spectrograph.
Fr.: magnitude instrumentale
The magnitude derived directly using → Pogson's relation. The instrumental magnitude depends on → detector→ sensitivity, telescope → aperture, exact filter → bandpass, etc. It must be → calibrated to some standard → photometric system.
Fr.: profil instrumental
The shape of instrument's response to the input signal. The Fourier transform of the source function by the instrument function.
instrumental response function
karyâ-ye pâsox-e sâzâl
Fr.: fonction de la réponse instrumentale
The mathematical form of the way an instrument affects the input signal.
In the philosophy of science, the pragmatic view that a scientific theory is no more than a useful instrument or tool for getting our experiences in some order.
An astronomer, engineer, or technician who is concerned with the construction of astronomical instruments.
1) sâzâlgari; 2) sâzâlgân
1) The design and use of scientific instruments for detection, measurement, control,
computation, and so on.
From → instrument + -ation a combination of -ate and -ion, used to form verbal nouns.
Sâzâlgari, noun from sâzâlgar, → instrumentalist. Sâzâlgân, with plurality suffix -gân.
Fr.: instrument méridien
An instrument designed to observe objects when they cross the meridian.
Fr.: instrument mural
An angle measuring device mounted on or built into a wall. For astronomical purposes, these walls were oriented so they lie precisely on a meridian.
Fr.: instrument optique
An instrument that either processes light waves to enhance an image or analyzes light waves to determine one of a number of characteristic properties.
Fr.: instrument solaire
An instrument especially designed for solar observations.
sâzâl-e gozare nimruzâni
Fr.: instrument méridien
An instrument mounted so as to allow it to be pointed only at objects in the sky crossing the local meridian. Also known as → transit telescope.