| 摘要 |
Scanning type device for detection of a photonic flux emitted by a scene containing at least one acquisition channel (V) comprising: several useful detectors ( 1 ) aligned with the scanning, each associated with a preamplifier ( 2 ), each receiving the same fraction of photonic flux from the scene and supplying information to the preamplifiers, a time delay integration device ( 4 ), integrating signals emitted by preamplifiers. The channel (V) cooperates with at least one calibration device ( 8 ) comprising: a calibration detector ( 9 ) on the input side of the useful detectors ( 1 ), receiving the fraction of photonic flux before the detectors ( 1 ), a device for generating a stimulus ( 11 ) from a fraction of the flux, and with at least one stimulus distribution device ( 13 ) for applying it to preamplifiers ( 2 ) before they have received the information from the associated useful detectors. Application particularly to imagery or to spectrometry.
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