Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)

Research of oxygen concentration information detecting method with LIA

Authors
Dianhong Yu, Zhen Guo, Lin Li
Corresponding Author
Dianhong Yu
Available Online November 2016.
DOI
https://doi.org/10.2991/aest-16.2016.137How to use a DOI?
Keywords
weak signals; lock-in amplifier; oxygen concentration detection; TDLAS.
Abstract
A method of detecting weak signals by two lock-in amplifiers is introduced to detect oxygen concentration as a weak signal, in the process of detecting oxygen concentration based on TDLAS. In this paper, the working principle of lock-in amplifier is described, and the principle and characteristics of detecting weak signals with two lock-in amplifiers are analyzed. The second harmonic signal is selected as the main extraction target. By simulating and analyzing the extraction process of signal with different phase, the feasibility and importance in improving detection accuracy are verified.
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Proceedings
2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
Part of series
Advances in Intelligent Systems Research
Publication Date
November 2016
ISBN
978-94-6252-257-2
ISSN
1951-6851
DOI
https://doi.org/10.2991/aest-16.2016.137How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Dianhong Yu
AU  - Zhen Guo
AU  - Lin Li
PY  - 2016/11
DA  - 2016/11
TI  - Research of oxygen concentration information detecting method with LIA
BT  - 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.137
DO  - https://doi.org/10.2991/aest-16.2016.137
ID  - Yu2016/11
ER  -