| 摘要 |
The invention concerns a scanner-type device for detecting a photonic flux emitted by a scene, including at least an acquisition channel (V) comprising: several useful sensors (1), aligned with the scanner, each associated with a preamplifier (2), receiving each a common fraction of the photonic flux from the scene and supplying an information to the preamplifiers, a delayed summing device (4) for the signals emitted by the preamplifiers. The channel (V) co-operates with at least a calibrating device (8) comprising: a calibrating sensor (9) upstream of the useful sensors (1), receiving the photonic flux fraction before the sensors (1), a device preparing a stimulus (11) from the flux fraction, and with at least a stimulus dispensing device (13) to apply it to the preamplifiers (2) before they have received the information from the associated useful sensors. The invention is applicable in particular to imaging or spectrometry.
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