PYROMETRIC METHOD FOR MEASURING OBJECT TEMPERATURE Russian patent published in 2005 - IPC

FIELD: measuring equipment engineering.

SUBSTANCE: method includes periodic amplitude modulation of heat radiation of object, focusing modulated heat radiation and conversion thereof into electric signal. During that in process of modulation of heat radiation from object time interval is periodically selected from the moment, appropriate for maximal value of capacity of modulator to moment appropriate for start of another overlapping by cutter of heat radiation from object. Within limits of this range alternation of heat radiation received at detector of beam energy from cutter by monotonous in relation to time tⁿ change of value of beam energy directed to receiver from surface of cuter area. Concurrently value and sign of n-numbered derivative of electric signal at output of receiver of beam energy is measured, value of which is proportional to temperature difference between moving cutter and fixed diaphragm of pyrometer.

EFFECT: higher precision.

5 dwg