METHOD FOR SIMULTANEOUS CALIBRATION OF SEVERAL HEAT FLOW SENSORS Russian patent published in 2022 - IPC G01K17/00 B23K26/351 

FIELD: laser technology.

SUBSTANCE: invention relates to a method for simultaneous calibration of several heat flow sensors using laser radiation and can be used in high-speed gas dynamic experiments, in gas dynamics, in the study of flame and chemical reactions with heat release. Laser radiation is fed into the optical path in the form of a parallel beam. A radiation converter installed in the optical path changes the shape, size and angle of expansion or compression of the laser beam. A rotating flat mirror scans the received laser radiation and reflected from the rotating flat mirror on the surface of the calibrated sensors. The electrical signals received from the calibrated sensors are fed to the adder. The distance between the calibrated sensors is chosen to be larger than the size of the laser beam on the calibrated sensors, the surface of the calibrated sensors is installed perpendicular to the axis of the laser radiation incident on them at an equal distance from the center of rotation of the reflecting flat mirror, and the calibrated sensors themselves are maintained at a given temperature by placing on a heat sink plate.

EFFECT: increase in the accuracy and speed of calibration and its simplification.

1 cl, 2 dwg