CONTRAIL DETECTION, DISCRIMINATION, AND CONTROL

    公开(公告)号:US20240167426A1

    公开(公告)日:2024-05-23

    申请号:US17991104

    申请日:2022-11-21

    IPC分类号: F02C9/28 G06V20/56 G08G5/00

    CPC分类号: F02C9/28 G06V20/56 G08G5/0039

    摘要: A system includes a first sensor positioned to sense presence of a contrail in a first volume, wherein the first volume at least partially overlaps an expected volume of a contrail proximate an aircraft. A second sensor is positioned to sense a background reference in a second volume, where the second volume does not overlap the expected volume of a contrail proximate an aircraft. A controller is operatively connected to the first and second sensors. The controller includes machine readable instructions configured to cause the controller to utilize data input from both the first and second volumes to determine if a contrail is present from the aircraft. A system includes machine readable instructions configured to cause the controller to predict persistence of contrails on an intended route through the volume of airspace and to determine an improved route and/or propulsion operation to reduce contrail formation and persistence relative to the intended route.

    CLOUD PHASE DETECTION
    7.
    发明公开

    公开(公告)号:US20240319379A1

    公开(公告)日:2024-09-26

    申请号:US18124215

    申请日:2023-03-21

    IPC分类号: G01S17/95 G01S7/4861

    CPC分类号: G01S17/95 G01S7/4861

    摘要: A cloud phase detection system can include a light receiver system configured to receive reflected light from a cloud, and a cloud phase module operatively connected to the light receiver system and configured to calculate a fourth Stokes parameter and a multiple scattering ratio (MSR) parameter based on the reflected light. The cloud phase module can be configured to determine a phase of a cloud based on a relationship between the fourth Stokes parameter and the MSR parameter.

    DISTRIBUTED RAMAN H2 SENSORS
    8.
    发明公开

    公开(公告)号:US20240302282A1

    公开(公告)日:2024-09-12

    申请号:US18118938

    申请日:2023-03-08

    发明人: Mark D. Ray

    IPC分类号: G01N21/65 G01M3/04

    摘要: A gas detection system includes a first optical fiber bundle connected to a first multi-pass cell for connecting the first multi-pass cell to a Raman spectrum analyzer. A second optical fiber bundle is connected to the first multi-pass cell for connecting the first multi-pass cell to a second multi-pass cell. The second optical fiber bundle can include a delay coil configured to provide temporal spacing between spectral returns from the first multi-pass cell and from the second multi-pass cell. The first and second multi-pass cells can be biconic multipass cells with a the first optical fiber bundle directed toward a first D-mirror, which is directed toward a T-mirror, which is directed toward a second D-mirror, which is directed toward the second optical fiber bundle. The D-mirrors can be on an opposite end of the first multi-pass cell from the T-mirror and the first and second optical fiber bundles.