Document Detail

Spectrum sensing of trace C<sub>2</sub>H<sub>2</sub> detection in differential optical absorption spectroscopy technique.
MedLine Citation:
PMID:  25321664     Owner:  NLM     Status:  In-Data-Review    
An improved algorithm for trace C<sub>2</sub>H<sub>2</sub> detection is presented in this paper. The trace concentration is accurately calculated by focusing on the absorption spectrum from the frequency domain perspective. The advantage of the absorption spectroscopy frequency domain algorithm is its anti-interference capability. First, the influence of the background noise on the minimum detectable concentration is greatly reduced. Second, the time-consuming preprocess of spectra calibration in the differential optical absorption spectroscopy technique is skipped. Experimental results showed the detection limit of 50 ppm is achieved at a lightpath length of 0.2 m. This algorithm can be used in real-time spectrum analysis with high accuracy.
Xi Chen; Xiaopeng Dong
Related Documents :
16404074 - Flat maps: a multi-layer parameterization for surgery simulation.
21691904 - Behavioral dynamics of the affordance "graspable"
22756894 - Mo-f-213ab-02: correcting spread-out bragg peak slope using time-resolved monte carlo s...
22254284 - Variation of wave speed determined by the pu-loop with proximity to a reflection site.
19907534 - Optical spectroscopy detects histological hallmarks of pancreatic cancer.
3838324 - Laser ablation of human atherosclerotic plaque without adjacent tissue injury.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  53     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-10-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5860-4     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Fast switching of nematic liquid crystals over a wide temperature range using a vertical bias electr...
Next Document:  Thermomechanical model to assess stresses developed during elevated-temperature cleaning of coated o...