METHOD OF CALIBRATING SPATIAL SPECTRAL SENSITIVITY OF MULTISPECTRAL CAMERA Russian patent published in 2024 - IPC G01J1/42 G01M11/02 

FIELD: measurement.

SUBSTANCE: invention relates to measurement equipment and a method of calibrating spatial spectral sensitivity of a multispectral camera. Method involves formation of a collimated beam of broadband electromagnetic radiation and extraction of narrow spectral intervals therefrom. Radiation is detected by a multispectral camera and a reference radiation receiver. Radiation source used is a radiation source based on a flat radiator, which is made with possibility of its automatic displacement during the calibration process. Spectral filtration of radiation is carried out with a double acousto-optic filter. Transition between calibration in collimated beams to converging beams is ensured by mechanical displacement of optical systems. Measurement of spectral sensitivity of multispectral camera to dependence on angle is performed using automatic goniometer.

EFFECT: enabling fast automatic measurement of spatial spectral sensitivity of multispectral cameras in both parallel and converging beams, as well as depending on the angle of inclination of the camera matrix to the parallel radiation beam.

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