Long-Term Stable Online Acetylene Detection by a CEAS System with Suppression of Cavity Length Drift.

Qixin He, Qibo Feng, Jiakun Li

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

A NDIR Mid-Infrared Methane Sensor with a Compact Pentahedron Gas-Cell.Sensors (Basel, Switzerland) · 2020
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Qixin HeMoE Key Lab of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China. heqixin@bjtu.edu.cn.

Qibo FengMoE Key Lab of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China. qbfeng@bjtu.edu.cn.ORCID 0000-0003-2854-044X

Jiakun LiMoE Key Lab of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China. jkli@bjtu.edu.cn.

Funding

Fundamental Research Funds for the Central Universities 2019RC002National Natural Science Foundation of China 51527806

6 · The paper itself

Abstract

A trace acetylene (C₂H₂) detection system was demonstrated using the cavity-enhanced absorption spectroscopy (CEAS) technique and a near-infrared distributed feedback (NIR-DFB) laser. A Fabry⁻Perot (F⁻P) cavity with an effective optical path length of 49.7 m was sealed and employed as a gas absorption cell. Co-axis cavity alignment geometry was adopted to acquire a larger transmitted light intensity and a higher sensitivity compared with off-axis geometry. The laser frequency was locked to the cavity fundamental mode (TEM

Indexed as

cavity-enhanced absorption spectroscopygas sensorinfrared absorption spectroscopy

Identifiers

PMID30691128

DOI10.3390/s19030508

PMCPMC6387314

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.