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Temperature-corrected oxygen detection based on multi-mode diode laser correlation spectroscopy
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نویسنده
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lou x. ,somesfalean g. ,zhang z. ,wu s.
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منبع
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journal of spectroscopy - 2013 - دوره : 2013 - - کد همایش:
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چکیده
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Temperature-corrected oxygen measurements were performed by using multi-mode diode laser correlation spectroscopy at temperatures ranging between 300 and 473 k. the experiments simulate in situ monitoring of oxygen in coal-combustion exhaust gases at the tail of the flue. a linear relationship with a correlation coefficient of -0.999 was found between the evaluated concentration and the gas temperature. temperature effects were either auto-corrected by keeping the reference gas at the same conditions as the sample gas,or rectified by using a predetermined effective temperature-correction coefficient calibrated for a range of absorption wavelengths. relative standard deviations of the temperature-corrected oxygen concentrations obtained by different schemes and at various temperatures were estimated,yielding a measurement precision of 0.6%. © 2013 xiutao lou et al.
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آدرس
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department of physics,harbin institute of technology,harbin 150001,china,institute of combustion engineering,harbin institute of technology, China, department of physics,lund university,lund 22100,sweden,joint research center of photonics,zhejiang university-royal institute of technology,lund university, China, department of physics,harbin institute of technology, China, institute of combustion engineering,harbin institute of technology, China
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Authors
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