Incident Angle Approach to Sensitivity Enhancement for Ozone Sensor

Abstract:

The design and mathematical model of a reflective type optical gas sensor is presented. Light source is radiated at an incident angle for 10 cm gas cell with an internal diameter of 0.4 cm. At an incident angle of 1^o, optical path length obtained is 342.7886 cm, at 27^o incident angle, optical path length is 10.4926 cm and at an incident angle of 28^o, optical path length is 9.9631 cm. The model is most efficient at lower incident angles, precisely between (1^o and 27^o). Effects of variation in diameter and length of gas cell are also demonstrated.

• Periodical: Applied Mechanics and Materials (Volume 735)
• Pages: 255-259
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.735.255
• Online since: February 2015
• Authors: Michael David, Tay Ching En Marcus, Maslina Yaacob, Mohd Rashidi Salim*, Nabihah Hussin, Mohd Haniff Ibrahim, Sevia Mahdaliza Idrus, Nor Hafizah Ngajikin, Asrul Izam Azmi
• Keywords: Incident Angle, Light Reflection, Optical Path Length, Sensitivity, Sudden Enlargement

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