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Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments

This paper’s purpose was to demonstrate a performance of a novel approach in a low-noise optical sensor for an FTIR spectrometer. Methods: Compared to the standard FTIR detection setup, our sensor ensures a higher signal-to-noise ratio (SNR) and lower signal standard deviation by reducing the uncorr...

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Autores principales: Achtenberg, Krzysztof, Mikołajczyk, Janusz, Bielecki, Zbigniew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694966/
https://www.ncbi.nlm.nih.gov/pubmed/36433515
http://dx.doi.org/10.3390/s22228919
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author Achtenberg, Krzysztof
Mikołajczyk, Janusz
Bielecki, Zbigniew
author_facet Achtenberg, Krzysztof
Mikołajczyk, Janusz
Bielecki, Zbigniew
author_sort Achtenberg, Krzysztof
collection PubMed
description This paper’s purpose was to demonstrate a performance of a novel approach in a low-noise optical sensor for an FTIR spectrometer. Methods: Compared to the standard FTIR detection setup, our sensor ensures a higher signal-to-noise ratio (SNR) and lower signal standard deviation by reducing the uncorrelated noise components (e.g., thermal and 1/f noises of the detection module). Its construction is based on two-channel detection modules and a processing unit with implemented cross-correlation signal analyses. Each module was built of LWIR HgCdTe photodiodes and low-noise transimpedance amplifiers. Results: the experiments demonstrated a decrease in a signal standard deviation of about 1.7 times with a 10 dB-improvement in the SNR. Conclusion: this result indicates our sensor’s main benefit, especially in registered “weak” and noisy interferograms.
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spelling pubmed-96949662022-11-26 Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments Achtenberg, Krzysztof Mikołajczyk, Janusz Bielecki, Zbigniew Sensors (Basel) Article This paper’s purpose was to demonstrate a performance of a novel approach in a low-noise optical sensor for an FTIR spectrometer. Methods: Compared to the standard FTIR detection setup, our sensor ensures a higher signal-to-noise ratio (SNR) and lower signal standard deviation by reducing the uncorrelated noise components (e.g., thermal and 1/f noises of the detection module). Its construction is based on two-channel detection modules and a processing unit with implemented cross-correlation signal analyses. Each module was built of LWIR HgCdTe photodiodes and low-noise transimpedance amplifiers. Results: the experiments demonstrated a decrease in a signal standard deviation of about 1.7 times with a 10 dB-improvement in the SNR. Conclusion: this result indicates our sensor’s main benefit, especially in registered “weak” and noisy interferograms. MDPI 2022-11-18 /pmc/articles/PMC9694966/ /pubmed/36433515 http://dx.doi.org/10.3390/s22228919 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Achtenberg, Krzysztof
Mikołajczyk, Janusz
Bielecki, Zbigniew
Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title_full Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title_fullStr Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title_full_unstemmed Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title_short Two-Channel Detecting Sensor with Signal Cross-Correlation for FTIR Instruments
title_sort two-channel detecting sensor with signal cross-correlation for ftir instruments
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9694966/
https://www.ncbi.nlm.nih.gov/pubmed/36433515
http://dx.doi.org/10.3390/s22228919
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AT mikołajczykjanusz twochanneldetectingsensorwithsignalcrosscorrelationforftirinstruments
AT bieleckizbigniew twochanneldetectingsensorwithsignalcrosscorrelationforftirinstruments