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Radiometric calibration and measurement algorithm for electrical inspection solar-blind ultraviolet cameras

Coetzer Casper J., West Nicholas

Opto-Electronics Review

2022

Vol. 30, No. 1

art. no. e140128

Solar-blind ultraviolet cameras with image intensifier with CMOS detector typically use various count methodologies to measure the optical energy of an electrical corona. However, these count methodologies are non-radiometric without considering parameters such as distance, focus-, zoom-, and gain setting of a camera. An algorithm which considers the calibration and radiometric measurement of optical energy for the slow frame rate intensifier type cameras is presented. Furthermore, it is shown how these calibration data together with the flowcharts are used for the conversion from raw measured data to radiometric energy values.