کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10410381 | 894432 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas diagnosis by a quantitative assessment of the transient response of a capillary-attached gas sensor
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Gas diagnosis by a quantitative assessment of the transient response of a capillary-attached gas sensor Gas diagnosis by a quantitative assessment of the transient response of a capillary-attached gas sensor](/preview/png/10410381.png)
چکیده انگلیسی
A numerical comparison of the transient response of a capillary-attached gas sensor (CGS) to an unknown target gas (TG) with those previously recorded for reference gases, afforded TG identification. A CGS was fabricated by hermetic attachment of an 80Â mm long glass tube of 2Â mm internal diameter to a zinc oxide based resistive gas sensor. The normalized transient responses of the fabricated device to hydrogen, methanol, ethanol and butanol were recorded as references. The response to an unknown TG was then compared with the reference profiles after normalization. The means of comparison was the calculation of the square error integrals of the recorded response with respect to the reference profiles. The TG was identified by selection of the reference gas corresponding to the least square error integral calculated. The device could identify an unknown contamination among the references available. The method was proved to be applicable to a wide concentration range. Numerical examples, based on the actual test results, are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 107, Issue 1, 27 May 2005, Pages 461-467
Journal: Sensors and Actuators B: Chemical - Volume 107, Issue 1, 27 May 2005, Pages 461-467
نویسندگان
Faramarz Hossein-Babaei, Maryam Hemmati, Mehrdad Dehmobed,