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Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor

The image resolution is the most important performance parameter for an aerial optoelectronic sensor. Existing thermal control methods cannot eliminate the sensor’s temperature gradient, making the image resolution difficult to further improve. This article analyzes the different impacts of temperat...

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Detalles Bibliográficos
Autores principales: Liu, Fuhe, Cheng, Zhifeng, Jia, Ping, Zhang, Bao, Liu, Xiaofeng, Hu, Rizha
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631959/
https://www.ncbi.nlm.nih.gov/pubmed/31248131
http://dx.doi.org/10.3390/s19122753
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author Liu, Fuhe
Cheng, Zhifeng
Jia, Ping
Zhang, Bao
Liu, Xiaofeng
Hu, Rizha
author_facet Liu, Fuhe
Cheng, Zhifeng
Jia, Ping
Zhang, Bao
Liu, Xiaofeng
Hu, Rizha
author_sort Liu, Fuhe
collection PubMed
description The image resolution is the most important performance parameter for an aerial optoelectronic sensor. Existing thermal control methods cannot eliminate the sensor’s temperature gradient, making the image resolution difficult to further improve. This article analyzes the different impacts of temperature changes on the imaging resolution and proposes modifications. Firstly, the sensor was subjected to thermo-optical simulation by means of finite element analysis, and the different impacts of temperature changes on the imaging quality were analyzed. According to the simulation results, an active thermal control method is suggested to enhance the temperature uniformity of the sensor. Considering the impacts of active and passive thermal control measures, thermal optical analysis was carried out to predict the performance of the sensor. The results of the analysis show that the imaging quality of the sensor has been significantly improved. The experimental results show that the image resolution of the optoelectronic sensor improved from 47 to 59 lp/mm, which demonstrates that the sensor can produce a high image quality in a low-temperature environment.
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spelling pubmed-66319592019-08-19 Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor Liu, Fuhe Cheng, Zhifeng Jia, Ping Zhang, Bao Liu, Xiaofeng Hu, Rizha Sensors (Basel) Article The image resolution is the most important performance parameter for an aerial optoelectronic sensor. Existing thermal control methods cannot eliminate the sensor’s temperature gradient, making the image resolution difficult to further improve. This article analyzes the different impacts of temperature changes on the imaging resolution and proposes modifications. Firstly, the sensor was subjected to thermo-optical simulation by means of finite element analysis, and the different impacts of temperature changes on the imaging quality were analyzed. According to the simulation results, an active thermal control method is suggested to enhance the temperature uniformity of the sensor. Considering the impacts of active and passive thermal control measures, thermal optical analysis was carried out to predict the performance of the sensor. The results of the analysis show that the imaging quality of the sensor has been significantly improved. The experimental results show that the image resolution of the optoelectronic sensor improved from 47 to 59 lp/mm, which demonstrates that the sensor can produce a high image quality in a low-temperature environment. MDPI 2019-06-19 /pmc/articles/PMC6631959/ /pubmed/31248131 http://dx.doi.org/10.3390/s19122753 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Fuhe
Cheng, Zhifeng
Jia, Ping
Zhang, Bao
Liu, Xiaofeng
Hu, Rizha
Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title_full Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title_fullStr Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title_full_unstemmed Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title_short Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor
title_sort impact of thermal control measures on the imaging quality of an aerial optoelectronic sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631959/
https://www.ncbi.nlm.nih.gov/pubmed/31248131
http://dx.doi.org/10.3390/s19122753
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