Research on High Performance Methane Gas Concentration Sensor Based on Pyramid Beam Splitter Matrix.

Boqiang Wang, Xuezeng Zhao, Yiyong Zhang, Zhuogang Wang

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2024. 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.

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

CoSensors (Basel, Switzerland) · 2024
Article

4 · The record

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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

4 authors.

Boqiang WangSchool of Mechatonics Engineering, Harbin Institute of Technology, Harbin 150006, China.

Xuezeng ZhaoSchool of Mechatonics Engineering, Harbin Institute of Technology, Harbin 150006, China.

Yiyong ZhangSchool of Mechatonics Engineering, Harbin Institute of Technology, Harbin 150006, China.

Zhuogang Wang703 Research Institute, China State Shipbuilding Corporation Limited, Harbin 150010, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methane gas concentration detection faces the challenges of increasing accuracy and sensitivity, as well as high reliability in harsh environments. The special design of the optical path structure of the sensitive element provides an opportunity to improve methane gas concentration detection. In this study, the optical path structure of the sensitive element was newly designed based on the Pyramidal beam splitter matrix. The infrared light source was modulated by multi-frequency point-signal superimposed modulation technology. At the same time, concentration detection results and confidence levels were calculated using the four-channel methane gas concentration detection algorithm based on spectral refinement. Through the experiment, it was found that the sensor enables the full-range measurement of CH4; at the lower explosive limit (LEL, CH4 LEL of 5%), the reliability level is 0.01 parts-per-million (PPM), and the limit of detection is 0.5 ppm. The sensor is still capable of achieving PPM-level detections under extreme conditions in which the sensor's optical window is covered by two-thirds and humidity is 85% or dust concentration is 100 mg/m

Indexed as

chirp z-transformmethane gas concentration detectionpyramidal beam splitter matrixredundant sensorsignal superposition technology

Identifiers

PMID38257694

DOI10.3390/s24020602

PMCPMC11154482

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