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Measurement function
The function whose output value, computed from the input quantity values, is the measured value of the output quantity — Y = f(X₁, …, Xₙ) when…
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63 results for “Measurement function”
…Transmittance, on a logarithmic scale, as a function of wavelength of the MAP (Measurement Assurance Program) filters ....................................................................................55 Figure C4. Measured spectral transmittance of…
…is the measured SPRT resistance or resistance ratio at the triple point of water [TPW, (273.16 K)]. For the deviation functions, ΔW = W…
Documents
SP 250-71 — Surface Color 0 45
…The measured spectral reflectance factor is a convolution of the true reflectance factor and the normalized bandpass function. At each wavelength point, measured reflectance…
…Ithasthereforebeenthesubjectofcontinuinginvestigations todecreaseandassessuncertainties andtoincreaseitsefficiency.Recent improvements intheprocessarethedetermination ofthesystemresponse linearity, thepolarizationcharacterization ofinstrumentandsources,and accurate measurement ofthespectroradiometer spectral responsivity function. Thethermodynamic temperatureofmeltinggoldremains asthe chiefsourceofuncertainty inthescalerealization. Thecalibratedlampstandardsofspectralradianceareprovidedtothe userwithareportofcalibrationandanattachmentwhichbrieflydescribes…
…0,(A„A)^z(\-Ay0,,(A), (3.6) wheretheslit-scattering functionz{A(^-A) isdependentonlyonthedifferencebetweenthe wavelength settingofthemonochromator andthewavelengthoftheflux(power)andthe "spectralflux"factor0^^isdependentonlyonthewavelengthoftheflux.Thefactor <Z…
…The SPRT resistance is measured at the argon triple point (ArTP), the mercury triple point (HgTP), and the WTP. The deviation function for this…
…j ����τ � . (21) For transmission density as a function of the measured signals, the first measurement equation is obtained by substituting E qs. (18…
Documents
SP 250-95 — Photometric Calibrations
…CIE V(λ) function. Radiometry concerns physical measurement of optical radiation as a function of its wavelength. As specified in the definition of the…
…previous reference instrument, the Spectral Tri-function Automated Reference Reflectometer (STARR), are described. Examples of calibration measurements, including specular reflectance of mirrors, bidirectional reflectance…