METHOD FOR MEASUREMENT OF LASER RADIANT ENERGY BY BOLOMETRIC LATTICES Russian patent published in 2002 - IPC

FIELD: measuring equipment, applicable in feed-through meters of radiant energy of high-power pulsed lasers. SUBSTANCE: the bolometric elements, composite lattices are made of two different bolometric materials having a unique non-linear approximating dependence of resistance on temperature, but different signs at non-linear terms. The bolometric elements are made in the form of rectangular parallelepipeds, whose one of the faces is oriented normally to the direction of propagation of laser radiation. The relation of the thickness (dimensions of the face along the propagation of radiation) near the bolometric elements made of different material is selected proceeding from the condition of their warm-up to an equal temperature at a similar density of energy of the acting radiation. The relation of the width (dimensions of the face subjected to radiation treatment) located near the bolometric elements is selected proceeding from the condition of provision of equality of investment of the non-linear component (in absolute value) to variation of the resistance of these bolometric elements heated to the same temperature. EFFECT: enhanced accuracy of measurement of laser radiant energy. 1 dwg