ICE CRYSTALS AND VOLCANIC ASH DETECTION SYSTEM

    公开(公告)号:EP3400461A1

    公开(公告)日:2018-11-14

    申请号:EP17736378.5

    申请日:2017-01-06

    发明人: RENNÓ, Nilton O.

    IPC分类号: G01T1/178 G08G5/00

    摘要: Methods and systems for detecting ice crystals and volcanic ash in concentrations capable of causing power loss in aircraft jet engines. These hazard conditions are inferred from the detection of ice crystals or ash in air recently lifted from the lower atmosphere by convective updrafts. The detection systems can comprise subsystems for detecting air recently lifted from the lower troposphere by measuring radon activity along the aircrafts' flight track, as well as subsystems for detecting ice crystals or volcanic ash around the aircraft via multispectral measurements. The detection of ice crystals in air recently lifted from the lower troposphere indicates that the ice crystals are likely present in large concentration. The detection of volcanic ash in air recently lifted from lower atmosphere also indicates that volcanic ash is likely present in high concentration. These are hazards conditions that could cause power loss, jet engine flameout, and even damage jet engines.

    SAMPLE ANALYSIS SYSTEM
    10.
    发明公开

    公开(公告)号:EP3327600A3

    公开(公告)日:2018-07-11

    申请号:EP17203167.6

    申请日:2017-11-22

    摘要: A sample analysis system is provided with: a reference substance database including measurement results and component classification information of reference substances obtained by each analysis device on information of each reference substance; a reference substance designation unit; a measurement result collation unit to obtain the commonality of the components, the difference between the physical quantities of the respective components, and the degree of coincidence of the measurement results for each analysis device for the designated reference substance; an integration coincidence degree calculation unit to obtain an integration degree of coincidence; and a judgment unit to judge whether or not the difference between the contents of contained components is within an allowable range and classify the corresponding component based on the component classification information.