Analysis of Improved Low Cost Transmissive Formaldehyde (CH2O) Ultraviolet Gas Sensor

Mohamad Shahrulnizam Zakaria, Mohd Rashidi Salim, Mohd Haniff Ibrahim, Asrul Izam Azmi, Ahmad Sharmi Abdullah, Muhammad Yusof Mohd Noor, Nor Hafizah Ngajikin, Hadi Manap

Abstract


The Ultraviolet gas sensor specifically designed for Formaldehyde (CH2O) which consists of low cost components has been simulated using ZEMAX®12. The transmissive gas cell design used aluminum material that is robust and inert material to increase its performance. CAF2 lens has been replaced with CAF2 window to reduce the construction cost. Therefore, to collimate the light, compound parabolic concentrator (CPC) structure attached at both ends of the gas cell. The simulated results show the improved gas cell with CAF2 windows and truncated CPC structure yields the initial power efficiency of 60.72%. However, when the optical path length of the gas sensor being adjusted and reduced down to 25 mm, the power efficiency increases to 66.82% with peak irradiance and output power of 0.2511 W/cm2 and 0.2673 mW respectively.

Keywords


CH2O; Transmissive Gas Sensor; Ultraviolet; Efficiency; Compound Parabolic Concentrator; ZEMAX®12

Full Text:

PDF

References


Chung, P.R., Tzeng, C.T., Ke, M.T. and Lee, C.Y., 2013. Formaldehyde gas sensors: a review. Sensors, 13(4), pp.4468-4484.

D. Harvey, Analytical chemistry 2.0, 1st ed. p. chapter 12 : spectroscopy method.

"Spectral Calculator - atmospheric gas spectra, infrared molecular absorption spectrum", Spectralcalc.com, 2017. [Online]. Available: http://spectralcalc.com. [Accessed: 14- May- 2017].

"SENSOR ELECTRONIC TECHNOLOGY - UVTOP355TO39FW - Uncategorized - UV LED FLAT WINDOW - Straight Road Electronics", Straightroadelectronics.com, 2017. [Online]. Available: http://www.straightroadelectronics.com/sensor-electronic-technology/UVTOP355TO39FW. [Accessed: 14- Apr- 2017]

“Cite a Website - Cite This For Me", Osioptoelectronics.com, 2017. [Online].Available:http://www.osioptoelectronics.com/Libraries/Product-Data-Sheets/Photoconductive-Photodiodes.sflb.ashx. [Accessed:13-Apr- 2017].

Masahiko Daimon and Akira Masumura, "High-accuracy measurements of the refractive index and its temperature coefficient of calcium fluoride in a wide wavelength range from 138 to 2326 nm," Appl. Opt. 41, 5275-5281 (2002)

Manap, H (2011). An Ultra Violet Optical Fibre Based Sensor for Ammonia Detection in the Agricultural Sector. Doctor Philosophy. University of Limerick.

Peng, C., Li, X., Xiong, L., Zhang, P., Liu, X. and Wang, J., 2010, December. Light collection systems for multiple LED arrays. In Advances in Optoelectronics and Micro/Nano-Optics (AOM), 2010 OSA-IEEE-COS (pp. 1-5). IEEE.

K. Fuwa and B. Valle, "The Physical Basis of Analytical Atomic Absorption Spectrometry. The Pertinence of the Beer-Lambert Law.", Analytical Chemistry, vol. 35, no. 8, pp. 942-946, 1963.

ZEMAX Users' Knowledge Base. Available: http://www.zemax.com/kb

Mayrwoeger, J., Hauer, P., Jakoby, B., Reichl, W. and Krutzler, C., 2009. I4. 3-Design and Simulation of a NDIR Gas Sensor System with Ray Tracing Using a Monte-Carlo Method. Proceedings OPTO 2009 & IRS² 2009, pp.263-268.

M. Salim, M. Yaacob, T. Ching En Marcus, M. David, N. Hussin, M. Ibrahim, A. Izam Azmi, N. Ngajikin, G. Dooly and E. Lewis, "Analysis of Optimized and Improved Low Cost Carbon Dioxide (CO2) Reflective Mid-Infrared Gas Sensor", Jurnal Teknologi, vol. 73, no. 3, 2015.

J. Lavoué, R. Vincent and M. Gérin, "Formaldehyde Exposure in U.S. Industries from OSHA Air Sampling Data", Journal of Occupational and Environmental Hygiene, vol. 5, no. 9, pp. 575-587, 2008.

A. Gratien, B. Picquet-Varrault, J. Orphal, E. Perraudin, J. Doussin and J. Flaud, "Laboratory intercomparison of the formaldehyde absorption cross sections in the infrared (1660–1820 cm−1) and ultraviolet (300–360 nm) spectral regions", Journal of Geophysical Research, vol. 112, no. 5, 2007.

W. Europe, WHO Guidelines for Indoor Air Quality, 1st ed. Geneva: World Health Organization, 2009.


Refbacks

  • There are currently no refbacks.