Long-Tune Natural Logarithmic Wavelength Modulation Spectroscopy for Gas Sensing
Lijuan Lan, Changsheng Zhang, Yibo Wang, Yu Xie, Luheng Wang, Chunhua Yang · 2024
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Description
Lijuan Lan and co-authors present a laser method to measure gases with high accuracy in work from 2024. The method tunes a laser across a wide range and takes a log of the signal. That trick makes the reading steady when light levels flicker.
A wide sweep can sense several gases at once, but it also brings a strong, curved background. The team tested the idea on carbon dioxide and water vapor lines near 2004 nanometers. Tests varied light strength, sweep depth, gas amount, and signal phase. The signal peak stayed at its best point in each test. Shaking of the setup also left the reading intact, which suits field use.
Catalog record
| CREATOR | Lijuan Lan, Changsheng Zhang, Yibo Wang, Yu Xie, Luheng Wang, Chunhua Yang |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 33 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |