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温控系统在DOAS下对SO2检测中的设计与应用

差分吸收光谱技术( DOAS )主要应用于环境污染物监测中,环境检测的不稳定性会造成监测设备数据采集的准确性改变,也会造成监测气体吸收光谱的改变。采用了一种基于 DSP 的温控系统,即使用温度控制系统采集和监控整套 DOAS 系统的温度。通过该温度控制系统调节温度,分别在不同温度下,验证了温度对光谱仪的 CCD 暗电流和 SO2气体的吸收光谱的影响。实验表明,暗电流随周围温度的下降呈指数下降,当温度达到20℃时,暗电流的变化较为平缓。并将该温度下的气体反演浓度与实际配比浓度进行对比,其误差约为2%。... Full description

Journal Title: 微型机与应用 2014, Issue 2, pp.1-3
Main Author: 杨凯
Other Authors: 王宝莹
Format: Electronic Article Electronic Article
Language: chi
Subjects:
CCD
SO2
CCD
So2
Quelle: China Online Journals (Wanfang)
ID: ISSN: 1674-7720 ; Classification: TP29 ; TB936
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recordid: wanfang_jourwxjyyy201402001
title: 温控系统在DOAS下对SO2检测中的设计与应用
format: Article
creator:
  • 杨凯
  • 王宝莹
subjects:
  • DOAS
  • 温度控制
  • CCD
  • SO2
  • 吸收光谱
  • Doas
  • Temperature Control System
  • CCD
  • So2
  • Sbsorption Spectrum
ispartof: 微型机与应用, 2014, Issue 2, pp.1-3
description: 差分吸收光谱技术( DOAS )主要应用于环境污染物监测中,环境检测的不稳定性会造成监测设备数据采集的准确性改变,也会造成监测气体吸收光谱的改变。采用了一种基于 DSP 的温控系统,即使用温度控制系统采集和监控整套 DOAS 系统的温度。通过该温度控制系统调节温度,分别在不同温度下,验证了温度对光谱仪的 CCD 暗电流和 SO2气体的吸收光谱的影响。实验表明,暗电流随周围温度的下降呈指数下降,当温度达到20℃时,暗电流的变化较为平缓。并将该温度下的气体反演浓度与实际配比浓度进行对比,其误差约为2%。
language: chi
source: China Online Journals (Wanfang)
identifier: ISSN: 1674-7720 ; Classification: TP29 ; TB936
fulltext: no_fulltext
issn:
  • 1674-7720
  • 16747720
url: Link


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title温控系统在DOAS下对SO2检测中的设计与应用
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1Yang Kai ; Wang Baoying
identifierISSN: 1674-7720 ; Classification: TP29 ; TB936
subjectDOAS ; 温度控制 ; CCD ; SO2 ; 吸收光谱 ; Doas ; Temperature Control System ; CCD ; So2 ; Sbsorption Spectrum
description
0差分吸收光谱技术( DOAS )主要应用于环境污染物监测中,环境检测的不稳定性会造成监测设备数据采集的准确性改变,也会造成监测气体吸收光谱的改变。采用了一种基于 DSP 的温控系统,即使用温度控制系统采集和监控整套 DOAS 系统的温度。通过该温度控制系统调节温度,分别在不同温度下,验证了温度对光谱仪的 CCD 暗电流和 SO2气体的吸收光谱的影响。实验表明,暗电流随周围温度的下降呈指数下降,当温度达到20℃时,暗电流的变化较为平缓。并将该温度下的气体反演浓度与实际配比浓度进行对比,其误差约为2%。
1Differential Optical Absorption Spectrometry ( DOAS ) has been mainly used in the field of environmental pollution monitoring . The instability of environmental monitoring changes the accuracy of monitoring equipments date acquisition and absorption spectroscopy of monitoring gases . The paper designs the temperature control system , which collects and monitors temperature in DOAS . In this paper , adjusting the temperature with the temperature control system , we verify the influence of different temperatures on the CCD dark current and the absorption spectrum of SO 2 gas . The experimental results show that the dark current and tempera-ture show exponential relationship which the CCD dark current of the circuit changes relatively smooth in 20 ℃. Compared the in-version concentration and the actual concentration , the error range is about 2%.
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vertitleThe temperature control system design and application on SO2 detection with DOAS Method
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0杨凯
1王宝莹
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3Wang Baoying
title温控系统在DOAS下对SO2检测中的设计与应用
description
0差分吸收光谱技术( DOAS )主要应用于环境污染物监测中,环境检测的不稳定性会造成监测设备数据采集的准确性改变,也会造成监测气体吸收光谱的改变。采用了一种基于 DSP 的温控系统,即使用温度控制系统采集和监控整套 DOAS 系统的温度。通过该温度控制系统调节温度,分别在不同温度下,验证了温度对光谱仪的 CCD 暗电流和 SO2气体的吸收光谱的影响。实验表明,暗电流随周围温度的下降呈指数下降,当温度达到20℃时,暗电流的变化较为平缓。并将该温度下的气体反演浓度与实际配比浓度进行对比,其误差约为2%。
1Differential Optical Absorption Spectrometry ( DOAS ) has been mainly used in the field of environmental pollution monitoring . The instability of environmental monitoring changes the accuracy of monitoring equipments date acquisition and absorption spectroscopy of monitoring gases . The paper designs the temperature control system , which collects and monitors temperature in DOAS . In this paper , adjusting the temperature with the temperature control system , we verify the influence of different temperatures on the CCD dark current and the absorption spectrum of SO 2 gas . The experimental results show that the dark current and tempera-ture show exponential relationship which the CCD dark current of the circuit changes relatively smooth in 20 ℃. Compared the in-version concentration and the actual concentration , the error range is about 2%.
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3SO2
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6Temperature Control System
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8Sbsorption Spectrum
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author杨凯 ; 王宝莹
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0差分吸收光谱技术( DOAS )主要应用于环境污染物监测中,环境检测的不稳定性会造成监测设备数据采集的准确性改变,也会造成监测气体吸收光谱的改变。采用了一种基于 DSP 的温控系统,即使用温度控制系统采集和监控整套 DOAS 系统的温度。通过该温度控制系统调节温度,分别在不同温度下,验证了温度对光谱仪的 CCD 暗电流和 SO2气体的吸收光谱的影响。实验表明,暗电流随周围温度的下降呈指数下降,当温度达到20℃时,暗电流的变化较为平缓。并将该温度下的气体反演浓度与实际配比浓度进行对比,其误差约为2%。
1Differential Optical Absorption Spectrometry ( DOAS ) has been mainly used in the field of environmental pollution monitoring . The instability of environmental monitoring changes the accuracy of monitoring equipments date acquisition and absorption spectroscopy of monitoring gases . The paper designs the temperature control system , which collects and monitors temperature in DOAS . In this paper , adjusting the temperature with the temperature control system , we verify the influence of different temperatures on the CCD dark current and the absorption spectrum of SO 2 gas . The experimental results show that the dark current and tempera-ture show exponential relationship which the CCD dark current of the circuit changes relatively smooth in 20 ℃. Compared the in-version concentration and the actual concentration , the error range is about 2%.