Academic literature on the topic 'Tdlas/wms'
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Journal articles on the topic "Tdlas/wms"
Xiao, Xiao, Jianquan Zhang, Guopeng Zhou, Fengqi Yu, George N. Lawrence, and Zhibin Wang. "Study on the Technique for Wavelength Modulation Spectroscopy with Narrow Band Interference Filter Based External Cavity Diode Laser." Journal of Physics: Conference Series 2597, no. 1 (September 1, 2023): 012012. http://dx.doi.org/10.1088/1742-6596/2597/1/012012.
Full textJiang, Chunlei, Yunfei Liu, Bo Yu, Shuxin Yin, and Peng Chen. "TDLAS-WMS second harmonic detection based on spectral analysis." Review of Scientific Instruments 89, no. 8 (August 2018): 083106. http://dx.doi.org/10.1063/1.5031683.
Full textLiang, Tiantian, Shunda Qiao, Xiaonan Liu, and Yufei Ma. "Highly Sensitive Hydrogen Sensing Based on Tunable Diode Laser Absorption Spectroscopy with a 2.1 μm Diode Laser." Chemosensors 10, no. 8 (August 11, 2022): 321. http://dx.doi.org/10.3390/chemosensors10080321.
Full textMu, Ye, Tianli Hu, He Gong, Ruiwen Ni, and Shijun Li. "A Trace C2H2 Sensor Based on an Absorption Spectrum Technique Using a Mid-Infrared Interband Cascade Laser." Micromachines 9, no. 10 (October 19, 2018): 530. http://dx.doi.org/10.3390/mi9100530.
Full textLu, Rong Jun, De Ming Shen, Qian Qian Du, Bao Zhen Huang, and Jian Shu Shi. "Tuning Characteristics of DFB Diode Laser and its Application to TDLAS Gas Sensor Design." Applied Mechanics and Materials 511-512 (February 2014): 173–77. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.173.
Full textZhu, Xiaorui, Shunchun Yao, Wei Ren, Zhimin Lu, and Zhenghui Li. "TDLAS Monitoring of Carbon Dioxide with Temperature Compensation in Power Plant Exhausts." Applied Sciences 9, no. 3 (January 28, 2019): 442. http://dx.doi.org/10.3390/app9030442.
Full textXu Jun, 徐俊, 李云飞 Li Yunfei, 程跃 Cheng Yue, 檀剑飞 Tan Jianfei, 刘东 Liu Dong, and 周振 Zhou Zhen. "基于TDLAS-WMS的甲烷泄漏遥测系统研制." Laser & Optoelectronics Progress 60, no. 6 (2023): 0628006. http://dx.doi.org/10.3788/lop213323.
Full textZHAO Chenglong, 赵成龙, 黄丹飞 HUANG Danfei, 刘智颖 LIU Zhiying, 王昱琪 WANG Yuqi, 钟艾琦 ZHONG Aiqi, 张耹铭 ZHANG Qinming, and 孟凡宏 MENG Fanhong. "开放型TDLAS-WMS技术CO2痕量气体检测." ACTA PHOTONICA SINICA 51, no. 2 (2022): 0230001. http://dx.doi.org/10.3788/gzxb20225102.0230001.
Full textBan, Deyue, Nan Li, Yongqiu Zheng, and Chenyang Xue. "CO2 Measurement under Different Pressure and Vibration Conditions Using Tunable Diode Laser Absorption Spectroscopy." Photonics 11, no. 2 (February 4, 2024): 146. http://dx.doi.org/10.3390/photonics11020146.
Full textLuo, Qiwu, Chunhua Yang, Cao Song, Jian Zhou, and Weihua Gui. "TDLAS/WMS Embedded System for Oxygen Concentration Detection of Glass Vials with Variational Mode Decomposition." IFAC-PapersOnLine 53, no. 2 (2020): 11626–31. http://dx.doi.org/10.1016/j.ifacol.2020.12.644.
Full textDissertations / Theses on the topic "Tdlas/wms"
Lambe, Derek. "WATER VAPOR AND CARBON DIOXIDE SPECIES MEASUREMENT IN NARROW CHANNELS." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4022.
Full textM.S.A.E.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Aerospace Engineering MSAE
Norén, Edvin. "Simultaneous detection of potassium, water vapor and temperature with tunable diode laser absorption spectroscopy." Thesis, Umeå universitet, Institutionen för fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105950.
Full textLan, Lijuan [Verfasser], Jia [Akademischer Betreuer] Chen, Jia [Gutachter] Chen, and Mark [Gutachter] Wenig. "Development of a CO2 sensor using TDLAS-WMS and its application for emission analysis in Munich / Lijuan Lan ; Gutachter: Jia Chen, Mark Wenig ; Betreuer: Jia Chen." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1212178173/34.
Full textCocola, Lorenzo. "Tunable diode laser absorption spectroscopy for oxygen detection." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422063.
Full textL’evoluzione delle sorgenti laser a diodo per le comunicazioni ottiche negli ultimi anni ha portato ad una disponibilità commerciale di dispositivi che si prestano alla spettroscopia di assorbimento di gas nel vicino e medio infrarosso. In questo lavoro si mostra come i limiti tradizionali della spettroscopia di assorbimento a diodi laser sintonizzabili vengano affrontati con tecniche di elaborazione numerica di segnali ed una attenta progettazione ottica rivolta alla realizzazione di strumenti per il rilevamento di gas caratterizzati dalla stabilità, robustezza ed affidabilità necessari per un ambiente industriale. Trattandosi di uno dei gas più critici per il rilevamento con questa tecnica, l’ossigeno è stato affrontato sotto molteplici aspetti di misura come: • Monitoraggio non invasivo; • Rilevazione di gas in mezzi diffondenti; • Rilevazione tramite bersagli retrodiffondenti; • Tecniche di misura di pressione per deboli segnali di assorbimento; • Rilevazione dinamica con risoluzione temporale; • Misure di temperatura attraverso spettroscopia di assorbimento. Molti di questi aspetti sono stati considerati simultaneamente portando allo sviluppo di strumenti appropriati ad un uso nel mondo reale in applicazioni industriali quali: • Rilevazione di ossigeno in contenitori parzialmente trasparenti come bottiglie di vino e bibite; • Controllo di macchine per il riempimento di pannelli isolanti in vetrocamera; • Rilevazione di ossigeno in contenitori con bersagli retrodiffondenti, quali confezioni alimentari. Altre applicazioni della tecnica ed esperimenti sulla spettroscopia di assorbimento di gas in mezzi porosi sono stati esplorati durante un periodo di 6 mesi presso Lunds Universitet - Lunds Tekniska Högskola - Atomfysik (Svezia) sotto la supervisione del Prof. S. Svanberg: • Analisi di gas in campioni porosi di frutta; • Rilevazione di gas all’interno del corpo umano come tecnica per la diagnostica medica; • Misura di ossigeno in contenitori completamente diffondenti per alimenti; • Spettroscopia di assorbimento multi-riga come misura di temperatura.
Caville, Sylvain. "Spectroscopie embarquée pour la distribution verticale d'ammoniac (NH3) et de dioxyde de carbone (CO2)." Electronic Thesis or Diss., Reims, 2024. http://www.theses.fr/2024REIMS008.
Full textAmmonia (NH3) is an atmospheric pollutant, emitted at 80 % by agriculture, which contributes to the eutrophication and acidification of natural environments. It is also a precursor of fine particles (PM2.5) that are harmful to human health. Despite this major scientific and societal role, our knowledge about atmospheric ammonia is still very limited. Measuring the vertical profile of NH3 is one of the keys to improving this knowledge. For this reason, the main objective of this thesis is to develop an ammonia measurement instrument that can be embedded in a tethered balloon to measure these vertical profiles. To begin, a state of the art of NH3 measurement was carried out through the data analysis of the AMICA campaign (Multi-Instrumental Analysis of Ammonia Concentrations) in autumn 2021. It highlighted the need to design an instrument without a sampling system to avoid bias due to NH3 adsorption. To assess the infrared spectroscopy techniques (DAS and WMS) intended for NH3 detection, a first instrument aimed at atmospheric CO2 measurements (main anthropogenic greenhouse gas) was developed and used to carry out vertical profiles. As NH3 is much more difficult to detect than CO2 , a long-path optical cell was designed to improve the instrument’s sensitivity. On a more general level, the tools developed and implemented during this thesis can be applied to the measurement of all the atmospheric species of interest, and in particular those that exist in trace quantities
Vujanic, Dragan. "Tunable diode laser trace gas detection with a vertical cavity surface emitting laser." Master's thesis, 2009. http://hdl.handle.net/10048/648.
Full textTitle from PDF file main screen (viewed on Oct. 19, 2009). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science, Department of Electrical and Computer Engineering, University of Alberta. Includes bibliographical references.
Conference papers on the topic "Tdlas/wms"
Geng, Jingxuan, Lijuan Lan, Qiwu Luo, and Chunhua Yang. "Development of an atmospheric CO2 sensor based on TDLAS-WMS." In Global Intelligent Industry Conference 2020, edited by Liang Wang. SPIE, 2021. http://dx.doi.org/10.1117/12.2590791.
Full textAn, Xinchen, Xiaomeng Fang, Xiang Liu, and Wenjian Kuang. "A Multiband Infrared Detection System Using Time-Sharing Multiplexing and TDLAS-WMS." In 2023 6th International Conference on Electronics Technology (ICET). IEEE, 2023. http://dx.doi.org/10.1109/icet58434.2023.10212022.
Full textLuo, Qiwu, bingxing zhou, and Chunhua Yang. "Dynamic sparse residual oxygen prediction method for encapsulated pharmaceutical vials under TDLAS/WMS framework." In 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA2022), edited by Wenqing Liu, Hongxing Xu, and Junhao Chu. SPIE, 2023. http://dx.doi.org/10.1117/12.2666217.
Full textGuha, Avishek, and Ingmar Schoegl. "Limited View Tomography of Combustion Zones Using Tunable Diode Laser Absorption Spectroscopy: Simulation of an Algebraic Reconstruction Technique." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89507.
Full textSur, Ritobrata, Thomas J. Boucher, Michael W. Renfro, and Baki M. Cetegen. "In-Situ Optical Measurements of Water Vapor Concentration and Temperature in a Proton Exchange Membrane Fuel Cell at Steady State and Under Dynamic Cycling." In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85093.
Full textEder, Alexander J., Bayu Dharmaputra, Marcel Désor, Camilo F. Silva, Alex M. Garcia, Bruno Schuermans, Nicolas Noiray, and Wolfgang Polifke. "Generation of Entropy Waves by Fully Premixed Flames in a Non-Adiabatic Combustor With Hydrogen Enrichment." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-102833.
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