CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12761 > Article
Poster + Paper
27 November 2023 Research on CO2 concentration detection technology based on tunable diode laser absorption spectroscopy
Keke Zhang, Haidong Zhang, Yingdong Yang, Yushang Wu, Xianglong Yang, Xueyong Zheng
Author Affiliations +
Proceedings Volume 12761, Semiconductor Lasers and Applications XIII; 1276114 (2023) https://doi.org/10.1117/12.2687854
Event: SPIE/COS Photonics Asia, 2023, Beijing, China
Conference Poster
Abstract
In the observation of CO2 flux, high-speed and high-precision measurement of CO2 concentration is an urgent problem to be solved, and the collection frequency of CO2 concentration must be greater than 10Hz. The Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology is widely used in various gas monitoring fields with high requirements for sensitivity, response time, and no background gas interference. In this paper, interband cascade laser at 4.26 micron is used as the system light source, and the second harmonic peak-peak value and the Root Mean Square (RMS) of sinusoidal are used to measure the CO2 concentration. When the laser CO2 analyzer was developed, comparative experiments were conducted using LI-7500DS and self-developed equipment. The CO2 concentration values measured by the laser gas analyzer and the LI-7500DS gas analyzer are synchronously collected using a sampling frequency of 10 Hz. The experimental results show that the trend of CO2 concentration measured by the two devices is consistent, and deviation of CO2 concentration is within ±2%, which can meet the needs of carbon dioxide flux measurement.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Keke Zhang, Haidong Zhang, Yingdong Yang, Yushang Wu, Xianglong Yang, and Xueyong Zheng "Research on CO2 concentration detection technology based on tunable diode laser absorption spectroscopy", Proc. SPIE 12761, Semiconductor Lasers and Applications XIII, 1276114 (27 November 2023); https://doi.org/10.1117/12.2687854
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 6 PAGES + POSTER
DOWNLOAD PAPER SAVE TO MY LIBRARY
DOWNLOAD
POSTER
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Carbon monoxide
Modulation
Signal detection
Absorption spectroscopy
Carbon dioxide
Tunable diode lasers
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top