Premium
Performances of a mid‐infrared CH 4 detection device using an optimized asymmetric ellipse gas‐cell
Author(s) -
Ye WeiLin,
Zheng ChuanTao,
Yu Xin,
Song ZhanWei,
Wang YiDing
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26282
Subject(s) - detection limit , ellipse , infrared , sensitivity (control systems) , range (aeronautics) , microwave , limit (mathematics) , materials science , analytical chemistry (journal) , optics , optoelectronics , chemistry , physics , electronic engineering , computer science , engineering , mathematics , chromatography , telecommunications , mathematical analysis , astronomy , composite material
We demonstrate a mid‐infrared CH 4 detection device using a novel fabricated asymmetric ellipse light‐collecting gas‐cell.Structural optimizations are performed for fast gas‐diffusion speed and high detection sensitivity. Detection experiments on standard CH 4 samples show that the detection sensitivity is about 9 ppm within the concentration range 8˜1000 ppm, the minimum detection limit is about 8 ppm, and the 10˜90% response time is as fast as 6.0 s. This fabricated device with asymmetric gas‐cell reveals superior performances to the previous reported device with symmetric gas‐cell in our laboratory. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2327–2330, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26282
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom