SENSING SYSTEMS
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United States of America Patent
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Issued Date -
Jun 12, 2014
app pub date -
Aug 3, 2012
filing date -
Aug 4, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention relates to volcanic ash sensing techniques for aircraft, and to related sensing apparatus and methods. We thus describe a volcanic ash sensor for an aircraft, the sensor comprising: an electrically conducting ash charge collection device; an electrically insulating support for mounting said collection device in an air duct; and a charge measurement system having an input electrically coupled to said ash charge collection device; wherein said electrically conducting ash charge collection device is configured such that an air flow over said ash charge collection device is a turbulent flow; and wherein said charge measurement system is configured to determine a level of charge in said ash charge collection device to determine the presence of volcanic ash in said air flow.
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