Influence of spectral characteristics of IR (8-12 mkm) photodetectors on thermovision system parameters

L. D. Saginov; V. N. Solyakov

doi:10.1117/12.407746

28 November 2000 Influence of spectral characteristics of IR (8-12 mkm) photodetectors on thermovision system parameters

L. D. Saginov, V. N. Solyakov

Author Affiliations +

Proceedings Volume 4340, 16th International Conference on Photoelectronics and Night Vision Devices; (2000) https://doi.org/10.1117/12.407746
Event: XVI International Conference on Photoelectronics and Night Vision Devices, 2000, Moscow, Russian Federation

Abstract

The calculations of noise equivalent temperature difference (NETD) for thermovision devices are carried out, with cut- off wavelengths of photo detectors ((lambda) _co) and distance to target used as parameters. For the estimation of influence of the photodiode spectral characteristics on the parameters of thermovision systems several characteristics were taken into account: the spectrum of radiation of object, transmission of an atmosphere and spectral characteristic of sensitivity of photo-diode array. The results show that an increase of (lambda) _co above 10.5 microns at small distances improves the temperature resolution in degradation of temperature resolution (increase NETD).

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L. D. Saginov and V. N. Solyakov "Influence of spectral characteristics of IR (8-12 mkm) photodetectors on thermovision system parameters", Proc. SPIE 4340, 16th International Conference on Photoelectronics and Night Vision Devices, (28 November 2000); https://doi.org/10.1117/12.407746

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