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Detection of soot using a resistivity sensor device employing thermophoretic particle deposition
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نویسنده
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lutic d. ,pagels j. ,bjorklund r. ,josza p. ,visser j.h. ,grant a.w. ,johansson m.l. ,paaso j. ,fägerman p.-e. ,sanati m. ,spetz a.l.
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منبع
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journal of sensors - 2010 - دوره : 2010 - شماره : 0
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چکیده
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Results are reported for thermophoretic deposition of soot particles on resistivity sensors as a monitoring technique for diesel exhaust particles with the potential of improved detection limit and sensitivity. soot with similar characteristics as from diesel exhausts was generated by a propane flame and diluted in stages. the soot in a gas flow at 240-270° c was collected on an interdigitated electrode structure held at a considerably lower temperature,105-125° c . the time delay for reaching measurable resistance values,the subsequent rate,and magnitude of resistance decrease were a function of the distance between the fingers in the electrodes and the degree of dilution of the soot containing flow. soot deposition and subsequent removal by heating the sensor support was also performed in a real diesel exhaust. good similarities between the behavior in our laboratory system and the real diesel exhaust were noticed. copyright © 2010 doina lutic et al.
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آدرس
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ergonomics and aerosol technology,lund university,box 118,221 00 lund,sweden,department of physics,chemistry and biology,linkping university,581 83 linkping,sweden,department of chemistry al. i.,cuza university of iasi,11 bd. carol i, Romania, ergonomics and aerosol technology,lund university,box 118, Sweden, department of physics,chemistry and biology,linkping university, Sweden, department 06100,volvo technology corporation,ctv,sven hultins gata 9d,41288, Sweden, ford motor company,dearborn, United States, department 06100,volvo technology corporation,ctv,sven hultins gata 9d,41288, Sweden, advanced engineering diesel department,volvo cars,97621 pv3 c1, Sweden, selmic oy,veistämötie 15, Finland, mandalon technology ab,westmansgatan 49, Sweden, ergonomics and aerosol technology,lund university,box 118, Sweden, department of physics,chemistry and biology,linkping university, Sweden
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Authors
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