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公开(公告)号：EP2870435B1
公开(公告)日：2017-09-06
申请号：EP13813091.9
申请日：2013-07-03
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公开(公告)号：EP1976427A2
公开(公告)日：2008-10-08
申请号：EP07835656.5
申请日：2007-01-10
CPC分类号： G01W1/02
摘要： A system (30, 10, 20) and method for providing a statistical measure of the size of liquid water droplets in a cloud, as well as a system and method for the detection and/or measurement of the presence of a cloud (408), liquid water content (406) in the cloud and ice water content (402) in the cloud, among other parameters.
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公开(公告)号：EP2870435A1
公开(公告)日：2015-05-13
申请号：EP13813091.9
申请日：2013-07-03
IPC分类号： G01F23/22
摘要： A system for detecting the presence of ice crystals in a cloud comprising two thin walled semicylinder-shaped sensors, one having a concave inner surface and oriented longitudinally in a leading edge of an airfoil and the other having a convex outer surface being oriented longitudinally in the leading edge of the airfoil so that cloud water flows towards and into contact with the convex outer surface; a temperature controlling arrangement for heating the two sensors and maintaining them at a substantially constant temperature; and a comparison arrangement for finding a difference between (i) a power to maintain the temperature of the first sensor at its substantially constant temperature (ii) a power to maintain the temperature of the second sensor at its substantially constant temperature; and comparing the difference of the powers to a threshold value for evidencing the presence or predetermined amount of ice in the cloud water.
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