PROCESS OF PYROMETRIC MEASUREMENT Russian patent published in 2000 - IPC

FIELD: optical methods of contact-free measurement of actual temperature of object. SUBSTANCE: intensity of inherent radiation of object is measured at several, but not less than three, temperatures T₁ < T₂ <...< T_N in several spectral intervals. Total radiation described by Stefan- Bolzmann law can be measured instead of one of intensities. Number of measured intensities M and number of values N of temperature at which measurements were taken should be tied up by number of unknown parameters determining intensity of radiation. EFFECT: increased measurement accuracy without use of preliminary graduation and possibility of plotting of thermodynamic temperature scale by radiation. 1 dwg