Fr.: étalonnage, calibration
1) The act or process of calibrating or the state of being calibrated.
Calibration, noun from → calibrate.
Kabizeš, noun from kabizidan, → calibrate.
Fr.: courbe d'étalonnage
An empirical curve obtained through appropriate exposures in order to determine the instrument's response. For example, a curve allowing the conversion of relative intensities of an observed object into absolute fluxes, or a curve relating the detector's pixel positions to wavelengths.
Fr.: erreur d'étalonnage
A systematic error in the constant values to be applied to a measuring instrument.
Fr.: pose d'étalonnage
An exposure obtained with an instrument mounted on the telescope using an artificial illuminating source in order to calibrate the instrument.
Fr.: lampe d'étalonnage
A lamp used for instrument calibration, such as an internal He-Ar arc for wavelength calibration or an external source of light placed in the telescope dome for flat-field exposures.
→ calibration; lamp, from O.Fr. lampe, L. lampas, from Gk. lampas "torch, lamp, light, meteor," from lampein "to shine."
Kabizeš, → calibration; lâmp, from Fr., as above.
Fr.: calibration de flux
The → calibration of the flux received by a detector in terms of absolute units.
Fr.: calibration hélium-argon
A wavelength calibration of astronomical spectra using a helium-argon light source.
kabizeš-e šidsanjik, ~ nursanjik
Fr.: calibration photométrique
A calibration which converts the measured relative magnitudes into an absolute photometry.