• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of 4th IEEE International Conference on Applied System Invention >Analysis of infrared radiator of NDIR based on electro-thermal modelling
【24h】

Analysis of infrared radiator of NDIR based on electro-thermal modelling

机译：基于电热模型的NDIR红外辐射源分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The A new Electro-Thermal Modelling is built for the infrared light source of non-dispersive infrared sensing technique for CO2 measurement. To verify the effectiveness of our proposed NDIR electro-thermal modelling, a NDIR CO2 measuring system is built and installed inside a gas chamber for CO2. The measuring module includes a light source at one end of an optical tube with 4 cm long and the infrared sensor connected to the other end of the optical tube; respectively. A period heating of infrared light source is applied to give infrared radiation in gas analyzer which operates based on the non-dispersive infrared sensing. For the conventional technique of constant periodic heating of infrared light source, an CO2 infrared sensor with a specific wavelength filter is used to give a signal corresponding to the infrared radiation. The thermal properties of light source with alternating modulation has been studied and verified based on the proposed electro-thermal modelling and compared to the measurement of the output signal of infrared sensor for different modulation frequencies and gas concentrations. A practical model for the description of relationship between gas concentration is realized and thermal parameters of light source are extracted. The measurement results show a great agreement with the simulation for behavior of signal. It also gives a new approach to build a theoretical model for all the NDIR measuring techniques.
机译：针对用于CO2测量的非分散红外传感技术的红外光源建立了新的电热模型。为了验证我们提出的NDIR电热建模的有效性，我们构建了NDIR CO2测量系统并将其安装在用于CO2的气室内。测量模块包括：在光管一端的光源，其长为4 cm，红外传感器连接到光管的另一端；分别。在基于非分散红外感应操作的气体分析仪中，对红外光源进行定期加热以产生红外辐射。对于常规的恒定周期性加热红外光源的技术，具有特定波长滤光片的CO2红外传感器用于提供与红外辐射相对应的信号。在提出的电热模型的基础上，对交替调制光源的热特性进行了研究和验证，并与不同调制频率和气体浓度下红外传感器输出信号的测量结果进行了比较。实现了描述气体浓度之间关系的实用模型，并提取了光源的热参数。测量结果与信号行为仿真非常吻合。它还为构建所有NDIR测量技术的理论模型提供了一种新方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号