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公开(公告)号：EP2122338B1
公开(公告)日：2010-04-07
申请号：EP08715499.3
申请日：2008-02-14
发明人： ZÖLLNER, Mathias
IPC分类号： G01N27/413 , G01N27/49 , C09K5/06 , G01N33/00
CPC分类号： G01N33/0039 , G01N27/404 , Y02A50/247
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公开(公告)号：EP2122338A1
公开(公告)日：2009-11-25
申请号：EP08715499.3
申请日：2008-02-14
发明人： ZÖLLNER, Mathias
IPC分类号： G01N27/413 , G01N27/49 , C09K5/06 , G01N33/00
CPC分类号： G01N33/0039 , G01N27/404 , Y02A50/247
摘要： Ozone sensors (OS) carried by balloons for the measurement of stratospheric ozone concentrations are based on the analysis of an electrochemical reaction of the ozone when conducting the same through a special aqueous reaction solution (WL) in a measuring cell (MZ). The height region is limited upward in that the pressure and temperature conditions of the measuring environment ultimately lead to a phase transformation of the aqueous reaction solution (WL) and modify the same such that the measurement must be aborted. In the ozone sensor (OS) according to the invention, the measuring cell (MZ) comprises a vessel (GE) that can be filled with water (WA). For this purpose, any released or absorbed energy differences (solidification heat/evaporation heat) are utilized by phase transformations occurring in the additive-free water (WA) chronologically before the phase transformations of the aqueous reaction solution (WL) upon reaching stratospheric heights without any additionally required outer influences. In the case of cooling, the naturally released solidification heat of the water (WA) protects the aqueous reaction solution (WL) from solidifying. In the case of overheating, the absorbed boiling heat of the water (WA) protects the aqueous reaction solution (WL) from evaporation so that the temperature of the aqueous reaction solution (WL) can be stabilized in the liquid region, and the measuring time can be extended.
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