A Portable Data Acquisition System for Online Wavelength Modulation Spectroscopy

被引：0
|
作者：
Xia, Yikai [1 ]
Xia, Jiangnan [1 ]
Xiao, Di [1 ]
Chen, Yuan [1 ]
Enemali, Godwin [2 ]
Liu, Chang [1 ]
机构：
[1] Univ Edinburgh, Sch Engn, Edinburgh, Midlothian, Scotland
[2] Glasgow Caledonian Univ, Dept Elect & Elect Engn, Glasgow, Lanark, Scotland
来源：
2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 | 2024年
关键词：
Data Acquisition (DAQ) system; Raspberry Pi; Field Programmable Gate Arrays (FPGA); Wavelength Modulation Spectroscopy (WMS); ABSORPTION-SPECTROSCOPY; TEMPERATURE; COMBUSTION;
D O I：
10.1109/I2MTC60896.2024.10560592
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Temperature and gas concentration are crucial parameters to be monitored in the combustion processes. As a non-intrusive laser measurement method, Wavelength Modulation Spectroscopy (WMS) has the advantages of high sensitivity, noise resistance, and fast response. To be cost-effective and flexible, it is highly demanded for an integrated, portable, and robust Data Acquisition (DAQ) system that runs without a high-level CPU. This paper aims to design a portable DAQ system using WMS for monitoring the gas parameters. The developed system consists of two main components with Ethernet communication between them: a Field Programmable Gate Arrays (FPGA)-based DAQ hub that digitizes, decomposes, and down-samples the measurement signal, and a Raspberry Pi that stores the data and enables online gas parameters monitoring using a data-driven neural network. The system is validated through a lab-scale combustion experiment, indicating its accuracy and efficiency.
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页数：6
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