METHOD FOR COMPENSATION OF BACKGROUND CONDITIONS INFLUENCE ON EFFICIENCY OF OPTOELECTRONIC DEVICES DURING SIDE ILLUMINATION TESTS Russian patent published in 2019 - IPC G01J1/42 G01M11/02 B64G7/00 

FIELD: test technology.

SUBSTANCE: invention relates to methods of testing optical-electronic devices (OED), in particular, stellar sensors, on noise immunity from side radiation. According to the method, the OED is mounted on a rotary device inside the vacuum chamber such that the angle between the axis of the beam from the solar radiation simulator and the axis of the OED blend is equal to the preset angle of the blend illumination, limiting the flow from the imitator to the diaphragm, placing it in front of the inlet protective glass of the vacuum chamber, creating a vacuum in the chamber, illuminating the plane of the entrance pupil of the blind with radiation of the simulator, obtaining distribution of illumination on the surface of the photosensitive element (PSE) of the photodetector PDE, exposure of background radiation is performed, as a result of which accumulation of electric signals in PSE is performed, which are proportional to distribution of illumination of the background signal obtained when the entrance pupil of the blind is illuminated with radiation of the simulator; signals accumulated in the PSE are memorized and used to evaluate the influence of background conditions on the operability of the OED. At that, after the first exposure, repeated exposure of the background signal is carried out, before which from outside on the protective glass an overlay made of optically opaque material in the form of a black ellipse (BE) is placed, which provides shutting off the flow of the simulator falling into the input eye pupil of the blind, storing electrical signals at the output of the PSE PDE OED, corresponding to the background signal of repeated exposure, performing element-by-segment subtracting of the signals of the second exposure from the stored signals of the first exposure; storing the obtained difference signals and determining the distribution of background signals under normal operation conditions for said illumination conditions, and used to assess the effect of background conditions on the operability of the OED.

EFFECT: technical result consists in reproducing background distribution of a photodetector with a background distribution in side illumination by solar radiation owing to compensation for the effect of parasitic background luminescence from elements of the design of the vacuum chamber on the distribution of background radiation.

1 cl, 15 dwg