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Investigation of the effect of inlet radius on the response time of a transmission type ozone sensor

David, Michael and Tay, Marcus Ching En and Yaacob, Maslina and Hussin, Nabihah and Salim, Mohd Rashidi and Ibrahim, Mohd Haniff and Idrus, Sevia Mahdaliza and Azmi, Asrul Izam and Ngajikin, Nor Hafizah (2014) Investigation of the effect of inlet radius on the response time of a transmission type ozone sensor. In: IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE 2014), 8 - 10 December 2014, Johor Bahru, Johor, Malaysia.


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The effect of inlet radius of a transmission type optical gas cell on its response time is reported. Six gas cells of varying lengths, and internal radius of 0.32cm were considered at first and then other internal diameters were also investigated afterwards. The effect of inlet radius is easily discernible at all velocities considered; however it is more pronounced at lower flow rates. At a velocity of 16.79cm/s of ozone gas, and for a target sensing time of ≤ 0.5 seconds; we observed that the inlet radius requirements for gas cells of varying lengths and varying internal diameters is not the same for a specific target sensing speed. The length and the internal radius of a gas cell are proportional to its inlet radius.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: optical path length; inlet diameter; internal diameter; response time; flow rate
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ950-1030 Pneumatic machinery
Divisions: Faculty of Electrical and Electronic Engineering > Department of Communication Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 25 Mar 2015 09:03
Last Modified: 25 Mar 2015 09:03
URI: http://eprints.uthm.edu.my/id/eprint/6604
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