Non-dispersive infra-red (NDIR) measurement of carbon dioxide at 4.2 μm in a compact and optically efficient sensor

被引：164

作者：

Hodgkinson, Jane ^{[1
]}

Smith, Richard ^{[2
]}

Ho, Wah On ^{[2
]}

Saffell, John R. ^{[2
]}

Tatam, Ralph P. ^{[1
]}

机构：

[1] Cranfield Univ, Sch Engn, Dept Engn Photon, Cranfield MK43 0AL, Beds, England

[2] Alphasense Ltd, Great Notley CM77 7AA, Essex, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 186卷

基金：

英国工程与自然科学研究理事会;

关键词：

Non-dispersive infra-red; NDIR; Gas detection; Optical absorption; Carbon dioxide; GAS SENSORS;

D O I：

10.1016/j.snb.2013.06.006

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Non-dispersive infra-red (NDIR) gas detection has enjoyed widespread uptake as a result of development of devices in the standard miniature format for gas sensors, consisting of a cylinder with external dimensions of 20 mm diameter x 16.5 mm height. We present a new design for such a sensor, making use of low-cost injection moulding technology. The design pays particular attention to the problem of maintaining a high optical throughput while providing an acceptable optical pathlength for gas detection. A detailed analysis of the design is presented, with the results of optical raytracing, showing a raytrace estimate for 4% of the total emitted radiation reaching each of two separated detector elements and a pathlength of 32 mm. Finally, we show experimental results obtained with as-manufactured devices, with a short-term limit of detection for carbon dioxide (CO2) estimated at 1 ppm or a noise equivalent absorption (NEA) of 3 x 10(-5) AU. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：580 / 588

页数：9

共 32 条

[1] Simulation of characteristics of optical gas sensors based on diode optopairs operating in the mid-IR spectral range [J].

Aleksandrov, S. E. ;

Gavrilov, G. A. ;

Kapralov, A. A. ;

Matveev, B. A. ;

Sotnikova, G. Yu. ;

Remennyi, M. A. .

TECHNICAL PHYSICS, 2009, 54 (06) :874-881

[2]

[Anonymous], 2007, MATHC VERS 14 MATH A

[3]

[Anonymous], 2012, IRCA1JUL12 ALPH LTD

[4]

[Anonymous], 2006, ZEM EE 2006 VERS OPT

[5] Advanced applications to Security of IR smart microbolometers - art. no. 673915 [J].

Corsi, C. ;

Liberatore, N. ;

Mengali, S. ;

Mercuri, A. ;

Viola, R. ;

Zintu, D. .

ELECTRO-OPTICAL REMOTE SENSING, DETECTION, AND PHOTONIC TECHNOLOGIES AND THEIR APPLICATIONS, 2007, 6739 :73915-73915

[6]

CUTLER SC, 2005, Patent No. 2005054827

[7] Metal Oxide Semi-Conductor Gas Sensors in Environmental Monitoring [J].

Fine, George F. ;

Cavanagh, Leon M. ;

Afonja, Ayo ;

Binions, Russell .

SENSORS, 2010, 10 (06) :5469-5502

[8] Design and fabrication of silicon-based mid infrared multi-lenses for gas sensing applications [J].

Fonollosa, J. ;

Rubio, R. ;

Hartwig, S. ;

Marco, S. ;

Santander, J. ;

Fonseca, L. ;

Woellenstein, J. ;

Moreno, M. .

SENSORS AND ACTUATORS B-CHEMICAL, 2008, 132 (02) :498-507

[9] Ethylene optical spectrometer for apple ripening monitoring in controlled atmosphere store-houses [J].

Fonollosa, J. ;

Halford, B. ;

Fonseca, L. ;

Santander, J. ;

Udina, S. ;

Moreno, M. ;

Hildenbrand, J. ;

Woellenstein, J. ;

Marco, S. .

SENSORS AND ACTUATORS B-CHEMICAL, 2009, 136 (02) :546-554

[10] Feasibility of a flip-chip approach to integrate an IR filter and an IR detector in a future gas detection cell [J].

Fonseca, L ;

Cabruja, E ;

Calaza, C ;

Rubio, R ;

Santander, J ;

Figueras, E ;

Gràcia, I ;

Cané, C ;

Moreno, M ;

Marco, S .

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2004, 10 (05) :382-386

← 1 2 3 4 →