NEW PROCESS GAS ANALYZER FOR THE MEASUREMENT OF WATER VAPOR CONCENTRATION

机译：用于测量水蒸气浓度的新型过程气体分析仪

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A new analyzer for the measurement of water vapor concentration based on Tunable Diode Laser Absorption Spectroscopy (TOLAS) was developed. The water-vapor line at 1854-nm was selected for the measurement, and the performance of the system was evaluated on different background gases to confirm that the measurement was free of interferences. An original feature of the instrument design is the use of an all-digital protocol for the modulation of the laser drive signal and the demodulation of the detector response. This innovation provides a simple means of varying the type of modulation protocol and all associated instrumental parameters. A reference cell is used in parallel with the sample cell to continuously validate the performance of the system. A limit of detection (LOD) of 5 ppmv and a range of 5 to 2500 ppmv were demonstrated.

机译：开发了一种基于可调谐二极管激光吸收光谱法（TOLAS）的水蒸气浓度分析仪。选择1854 nm处的水蒸气线进行测量，并在不同的背景气体下评估系统的性能，以确认测量没有干扰。仪器设计的原始功能是使用全数字协议来调制激光驱动信号和解调检测器响应。这项创新提供了一种简单的方法来改变调制协议的类型以及所有相关的仪器参数。参比池与样品池并联使用，以连续验证系统的性能。检出限（LOD）为5 ppmv，范围为5至2500 ppmv。

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来源
《The proceedings of AD 2007: Process control amp; compliance: analytical solutions》|2007年|p.134-145|共12页
会议地点 Houston TX(US);Houston TX(US)
作者
Airat Amerov; Mathew Maskas; William Meyer; Robert Fiore; Khoi Tran;
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作者单位

Application Scientist AMETEK PAI 150 Freeport Road Pittsburgh, PA 15238;

rnElectronics Engineer AMETEK PAI 150 Freeport Road Pittsburgh, PA 15238;

rnMechanical Engineer AMETEK PAI 150 Freeport Road Pittsburgh, PA 15238;

rnAMETEK PAI New Product Development Manager 150 Freeport Road Pittsburgh, PA 15238;

rnAMETEK PAI Software Development Manager 150 Freeport Road Pittsburgh, PA 15238;

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原文格式 PDF
正文语种 eng
中图分类成分分析仪器;
关键词
TDLAS; WMS; laser spectroscopy; water vapor measurement; gas analyzer;

机译：TDLAS; WMS;激光光谱;水蒸气测量;气体分析仪;

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4. NEW PROCESS GAS ANALYZER FOR THE MEASUREMENT OF WATER VAPOR CONCENTRATION [C] . Airat Amerov, Mathew Maskas, William Meyer, Analysis Division Symposium . 2007

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NEW PROCESS GAS ANALYZER FOR THE MEASUREMENT OF WATER VAPOR CONCENTRATION

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