Bolometer Detector Modeling and its Performance Indexes

Bolometer detector is one of thermal detectors. In this research the essential concepts and parameters are included which cover the main types of bolometer detectors. But the actual values of parameters used here in simulation are adopted from [7] for semiconductor bolometer. This detector operates...

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Main Author: Mehdi Munshid Shellal
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2012-10-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_66067_8206bdeca6b532f299e2f9d511847580.pdf
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author Mehdi Munshid Shellal
author_facet Mehdi Munshid Shellal
author_sort Mehdi Munshid Shellal
collection DOAJ
description Bolometer detector is one of thermal detectors. In this research the essential concepts and parameters are included which cover the main types of bolometer detectors. But the actual values of parameters used here in simulation are adopted from [7] for semiconductor bolometer. This detector operates for all optical wavelengths of different sources. From analysis and results obtained, it is shown that minimum and maximum values of specific Detectivity D* for cryogenic temperatures from 0.5 K to 10 K are 0.25~10 / and 5 ~ 10 / , respectively and the values between them when the incident radiation frequency is 100 Hz.. It is seen that for frequency greater than 1Hz, the specific Detectivity increases rapidly which means that the bolometer detector will respond for high frequencies in a manner more speed than that of low frequencies. It is found that as the value of Ąth is increased, the temperature change in detector sensor is decreased. That is decreasing Ąth enhance the performance of bolometer detector. It is found that the responsivity of this detector follow its output voltage which in turn follow the bolometer temperature change.
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spelling doaj.art-6e2214fcd8a241dfa624e5e9157a40742024-02-04T17:40:10ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582012-10-0130172966298610.30684/etj.30.17.366067Bolometer Detector Modeling and its Performance IndexesMehdi Munshid ShellalBolometer detector is one of thermal detectors. In this research the essential concepts and parameters are included which cover the main types of bolometer detectors. But the actual values of parameters used here in simulation are adopted from [7] for semiconductor bolometer. This detector operates for all optical wavelengths of different sources. From analysis and results obtained, it is shown that minimum and maximum values of specific Detectivity D* for cryogenic temperatures from 0.5 K to 10 K are 0.25~10 / and 5 ~ 10 / , respectively and the values between them when the incident radiation frequency is 100 Hz.. It is seen that for frequency greater than 1Hz, the specific Detectivity increases rapidly which means that the bolometer detector will respond for high frequencies in a manner more speed than that of low frequencies. It is found that as the value of Ąth is increased, the temperature change in detector sensor is decreased. That is decreasing Ąth enhance the performance of bolometer detector. It is found that the responsivity of this detector follow its output voltage which in turn follow the bolometer temperature change.https://etj.uotechnology.edu.iq/article_66067_8206bdeca6b532f299e2f9d511847580.pdfbolometer detectorthermal time constantnepvoltage responseresponsivityor detectivity
spellingShingle Mehdi Munshid Shellal
Bolometer Detector Modeling and its Performance Indexes
Engineering and Technology Journal
bolometer detector
thermal time constant
nep
voltage response
responsivity
or detectivity
title Bolometer Detector Modeling and its Performance Indexes
title_full Bolometer Detector Modeling and its Performance Indexes
title_fullStr Bolometer Detector Modeling and its Performance Indexes
title_full_unstemmed Bolometer Detector Modeling and its Performance Indexes
title_short Bolometer Detector Modeling and its Performance Indexes
title_sort bolometer detector modeling and its performance indexes
topic bolometer detector
thermal time constant
nep
voltage response
responsivity
or detectivity
url https://etj.uotechnology.edu.iq/article_66067_8206bdeca6b532f299e2f9d511847580.pdf
work_keys_str_mv AT mehdimunshidshellal bolometerdetectormodelinganditsperformanceindexes