Determination of the sensitivity of a microbolometer camera as part of a fourier spectroradiometer

Authors: Ostrichenko A.A.
Published in issue: #7(36)/2019
DOI: 10.18698/2541-8009-2019-7-503
Category: Physics | Chapter: Instrumentation and Methods of Experimental Physics
Keywords: spectral analysis, photodetector, infrared radiation, microbolometer camera, discrete signals, low-frequency filters, microbolometric camera sensitivity
Published: 30.07.2019

This article is devoted to the microbolometer camera, which represents an infrared radiation photodetector (PD), the authors carried out measurements of PD main parameters: sensitivity and signal-to-noise ratio (SNR) of the receiver. These values are used to set up the microbolometer camera modules in the device. The experimentally obtained camera sensitivity was 80 mK, which turned out to be worse than the declared one, and the SNR of the device, reduced to one degree, turned out to be 342. The dependence of the signal-to-noise ratio on the microbolometric camera shutter frequency was plotted. To confirm the efficiency the spectrum of ammonia was obtained and compared to the reference spectrum.

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