To process this page used the WaterSteamPro function "wspRIPTL": refractive index [-] as function of pressure p [Pa], temperature t [K], wave length wavelength [m].
Function is based upon the function wspRIRTL(r, t, wavelength). The latest in it's turn is based upon the "Release on the Refractive Index of Ordinary Water Substance as a Function of Wavelength, Temperature and Pressure", 1997 from IAPWS. The range of validity is: temperatures from -12 to 500°C, densities up to 1060 kg/m3, wavelengths from 0.2 mkm to 1.1 mkm. The formulation also extrapolates smoothly up to 1.9 mkm in water.
WaterSteamPro is a registered trademark of Moscow Power Engineering Institute (Technical University).
Copyright (c) MPEI (TU), 1999-2010.
Copyright (c) Konstantin A. Orlov, 1999-2010.