Detection device
AssigneeSociete Francaise de Detecteurs Infrarouges-Sofradir
InventorFrédéric SALVETTI
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Abstract
The detection device comprises a photodetector configured to transform an electromagnetic signal into a representative electric signal. The detection device also comprises an amplifier having a first input terminal connected to a first terminal of the photodetector. An integration capacitor is connected to the output terminal of the amplifier and to the first input terminal of the amplifier. A first source of a reference voltage is connected to a second input terminal of the amplifier. A second source of a detector voltage is connected to a second input terminal of the photodetector. The first and second voltage sources are correlated so as to correlate the noise components.
Claims11
A detection device, comprising:
- a photodetector configured to transform an electromagnetic signal into a representative electric signal,
- an amplifier having a first input terminal connected to a first terminal of the photodetector,
- an integration capacitor connected to an output terminal of the amplifier and to the first input terminal of the amplifier,
- a first voltage source configured to deliver a reference voltage to a second input terminal of the amplifier,
- a second voltage source configured to deliver a detector voltage to a second terminal of the photodetector, the second voltage source is correlated with the first voltage source so as to correlate noise components.
Dependencies are inferred from the claim text.