METHOD FOR CALIBRATING HEAT FLOW SENSORS WITH ROTATING MIRROR WITH VARIABLE SPEED Russian patent published in 2022 - IPC G01K17/00 B23K26/351 

FIELD: calibration of sensors.

SUBSTANCE: invention relates to a method for calibrating a heat flow sensor using laser radiation and can be used in high-speed gas-dynamic experiments, in gas dynamics, in studying flame and chemical reactions with heat release. Laser radiation is fed into the optical path in the form of a parallel beam. Radiation converter installed in the optical path changes the shape, size and angle of expansion or contraction of the laser beam. Rotating flat mirror is used to scan the obtained laser radiation, reflected from the flat mirror, on the surface of the sensor, and the rotation speed of the flat mirror changes the duration of the laser radiation pulse on the sensor being calibrated. Surface of the calibrated sensor is installed perpendicular to the axis of the incident laser radiation. Calibrated sensor is maintained at a given temperature by placing it on a heat-removing plate.

EFFECT: improving accuracy and speed of calibration and its simplification.

1 cl, 2 dwg