Infrared detector signal modulation and narrowband filtering system

Infrared detector signal modulation and narrowband filtering system

The utility model discloses an infrared detector signal modulation and narrowband filtering system. This system includes sinusoidal signal generator, analog multiplier and band pass filter. Sinusoidal signal generator output connection to analog multiplier's input in the system, analog multipli...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUN DEXIN, CHAI MENGYANG, CHEN KAI, LIU YINNIAN
Format: Patent
Sprache:eng
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Beschreibung
Zusammenfassung:The utility model discloses an infrared detector signal modulation and narrowband filtering system. This system includes sinusoidal signal generator, analog multiplier and band pass filter. Sinusoidal signal generator output connection to analog multiplier's input in the system, analog multiplier's output connection band pass filter's input. Provided is an advantage lies in both obtaining infrared detector output signal's amplitude information reducing the noise again by a wide margin to improve infrared system's SNR.