초록 ▼

A method for determination of the true temperature T and true radiative emissivity of a body at temperature T, using measurements of total energy radiated by the body in two or more adjacent wave length ranges l1≤ll2 and l3≤ll4; the wave length ranges may partially overlap or may be adjacent but non

A method for determination of the true temperature T and true radiative emissivity of a body at temperature T, using measurements of total energy radiated by the body in two or more adjacent wave length ranges l1≤ll2 and l3≤ll4; the wave length ranges may partially overlap or may be adjacent but non-overlapping.

대표청구항 ▼

With respect to an energy radiating body having an unknown temperature T and an unknown radiative emissivity parameter bbl1≤ll2 and l3≤ll4 of a thermally]energy radiating body, [of volume V], the method comprising the steps of: receiving energy radiated from said body at a distance from said body; m

With respect to an energy radiating body having an unknown temperature T and an unknown radiative emissivity parameter bbl1≤ll2 and l3≤ll4 of a thermally]energy radiating body, [of volume V], the method comprising the steps of: receiving energy radiated from said body at a distance from said body; measuring a first spectral intensity of the received energy corresponding to a first spectral portion of the received energy, D12, [radiated by the body in the]which is contained within a first wavelength range l1≤ll2; generating a first signal representative of said first spectral intensity; [and forming a first differential R12=D12/(l2-l1)V]; measuring a second spectral intensity of the received energy corresponding to a second spectral portion of the received energy, D34, [radiated by the body in the]which is contained within a second different wavelength range l3≤ll4, where the second wavelength range l3≤ll4 is chosen to be sufficiently narrow and close to said first wavelength range l1≤ll2 such that the radiative emissivity parameter bb