Evidence map›Paper›PMID 39736984›Full record

ArticlePhotoacoustics2025

Optomechanical energy enhanced BF-QEPAS for fast and sensitive gas sensing.

Weilin Ye, Linfeng He, Weihao Liu, Zhile Yuan, Kaiyuan Zheng, Guolin Li

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Photoacoustics, 2025. 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.

  1. 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

6 authors.

Weilin YeShantou Key Laboratory for Intelligent Equipment and Technology, College of Engineering, Shantou University, 243 Dax-ue Road, Shantou 515063, PR China.
Linfeng HeShantou Key Laboratory for Intelligent Equipment and Technology, College of Engineering, Shantou University, 243 Dax-ue Road, Shantou 515063, PR China.
Weihao LiuShantou Key Laboratory for Intelligent Equipment and Technology, College of Engineering, Shantou University, 243 Dax-ue Road, Shantou 515063, PR China.
Zhile YuanShantou Key Laboratory for Intelligent Equipment and Technology, College of Engineering, Shantou University, 243 Dax-ue Road, Shantou 515063, PR China.
Kaiyuan ZhengDivision of Environment and Sustainability, The Hong Kong University of Science and Technology, 999077, Hong Kong.
Guolin LiCollege of Control Science & Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Traditional beat frequency quartz-enhanced photoacoustic spectroscopy (BF-QEPAS) are limited by short energy accumulation times and the necessity of a decay period, leading to weaker signals and longer measurement cycles. Herein, we present a novel optomechanical energy-enhanced (OEE-) BF-QEPAS technique for fast and sensitive gas sensing. Our approach employs periodic pulse-width modulation (PWM) of the laser signal with an optimized duty cycle, maintaining the quartz tuning fork's (QTF) output at a stable steady-state level by applying stimulus signals at each half-period and allowing free vibration in alternate half-periods to minimize energy dissipation. This method enhances optomechanical energy accumulation in the QTF, resulting in an approximate 33-fold increase in response speed and a threefold increase in signal intensity compared to conventional BF-QEPAS. We introduce an energy efficiency coefficient

Indexed as

Continuous beat frequencyEnergy accumulation incentiveOptical sensorQuartz-enhanced photoacoustic spectroscopy

Identifiers

PMID39736984
PMCPMC11683322

What OpenQuestion holds

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Registered trials

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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.