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    OPTIMIZED MONOSTATIC LiDAR
    1.
    发明公开
    OPTIMIZED MONOSTATIC LiDAR 审中-公开

    公开(公告)号：US20240329221A1

    公开(公告)日：2024-10-03

    申请号：US18618818

    申请日：2024-03-27

    申请人： 3D at Depth, Inc.

    发明人： Carl W. Embry

    IPC分类号： G01S7/499 ,  G02B27/28

    CPC分类号： G01S7/499 ,  G02B27/283 ,  G02B27/286

    摘要： Described herein are methods and systems for remote, contactless, laser sensing through a LiDAR system having an improved monostatic optical configuration. The LiDAR system includes a beam splitter that co-aligns the transmit and receive beams with reduced loss to either the transmit or receive beam when compared to traditional methods. The polarizing beam splitter can include a beam splitting surface having a first zone that is polarization selective and a second zone that is not polarization selective. The light source of the LiDAR system is aligned to pass light having a first selected linear polarization to a scene via the first zone. Light received at the LiDAR system as a return signal is passed to a detector by both the first and second zones of the beam splitter. This can significantly reduce receive signal loss if the receiver aperture size is not large compared to the transmit aperture.

    Systems and methods for monitoring underwater structures
    3.
    发明授权
    Systems and methods for monitoring underwater structures 有权

    公开(公告)号：US11249193B2

    公开(公告)日：2022-02-15

    申请号：US15971108

    申请日：2018-05-04

    申请人： 3D at Depth, Inc.

    发明人： Carl W. Embry ,  Mark Hardy ,  Brett Nickerson ,  Neil Manning

    IPC分类号： G01S17/89 ,  G01V8/10 ,  G01M3/38 ,  G01V8/00 ,  G01M3/04 ,  G01S17/50 ,  G01M3/20 ,  G01M3/24 ,  G01K13/02

    摘要： Systems and methods for monitoring underwater structures are provided. First and second sets of point cloud data that are obtained at different times are compared to determine whether the location of the underwater structure has changed. For detecting vibration, a series of range measurements taken along a line intersecting the underwater structure are compared to one another to determine an amplitude and frequency of any vibration present in the underwater structure. For detecting temperature, the ratio of different components of return signals obtained from a point in the water surrounding the underwater structure is measured to derive the temperature of the water. Leak detection can be performed by scanning areas around the underwater structure. Monitoring systems can include a primary receiver for range measurements, and first and second temperature channel receivers for temperature measurements.

    UNDERWATER OPTICAL METROLOGY SYSTEM
    5.
    发明申请
    UNDERWATER OPTICAL METROLOGY SYSTEM 审中-公开

    公开(公告)号：US20190011552A1

    公开(公告)日：2019-01-10

    申请号：US16031867

    申请日：2018-07-10

    申请人： 3D at Depth, Inc.

    发明人： Carl W. Embry ,  Neil Manning ,  Derek D. Pierce ,  Julian Peter Rickards ,  Cory S. Moore

    IPC分类号： G01S15/87 ,  G01S17/88

    摘要： Described herein are methods and devices for improved location of any and all underwater structures or equipment installed underwater. In particular, systems are disclosed that combine optical and acoustic metrology for locating objects in underwater environments. The systems allow for relative positions of objects to be determined with great accuracy using optical techniques, and support enhanced location of devices that utilize acoustic location techniques. In addition, location information can be provided by the system even in conditions that make optical metrology techniques impossible or impractical.

    LASER INSPECTION AND MEASUREMENT SYSTEMS AND METHODS
    7.
    发明公开
    LASER INSPECTION AND MEASUREMENT SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20240111031A1

    公开(公告)日：2024-04-04

    申请号：US18374768

    申请日：2023-09-29

    申请人： 3D at Depth, Inc.

    发明人： Carl W. Embry ,  Jeremy D. Swedberg ,  Dominic M. Florin ,  Nelson Diaz ,  Neil Manning

    IPC分类号： G01S7/481 ,  G01S7/499 ,  G01S17/89 ,  G02B26/08 ,  G02B26/10

    CPC分类号： G01S7/4817 ,  G01S7/499 ,  G01S17/89 ,  G02B26/0816 ,  G02B26/10

    摘要： Methods and systems for improved inspection, measurements, mapping, monitoring, and trending of underwater infrastructure that contains or are located in fluids, and/or that is difficult to access. The methods and systems include a housing containing a light source, a hollow core motor, a reflector, and a pressure tolerant window. The light source is disposed to pass output light along a path that passes through an axis of rotation of the hollow core motor to the reflector. The reflector rotates about the axis of rotation of the motor and operates to reflect the light at an angle to the rotation axis. In at least some embodiments, the light is passed through a full 360 degrees about the axis of rotation. The described methods and devices utilize one or more non-touch underwater optical system (including laser systems) for underwater equipment and infrastructure inspection, measurements, mapping, monitoring, trending, and maintenance.

    SYSTEMS AND METHODS FOR MONITORING UNDERWATER STRUCTURES
    10.
    发明申请
    SYSTEMS AND METHODS FOR MONITORING UNDERWATER STRUCTURES 有权

    公开(公告)号：US20220128693A1

    公开(公告)日：2022-04-28

    申请号：US17569685

    申请日：2022-01-06

    申请人： 3D at Depth, Inc.

    发明人： Carl W. Embry ,  Mark Hardy ,  Brett Nickerson ,  Neil Manning

    IPC分类号： G01S17/89 ,  G01V8/00 ,  G01M3/04 ,  G01K13/02 ,  G01M3/20 ,  G01M3/24 ,  G01M3/38 ,  G01V8/10

    摘要： Systems and methods for monitoring underwater structures are provided. First and second sets of point cloud data that are obtained at different times are compared to determine whether the location of the underwater structure has changed. For detecting vibration, a series of range measurements taken along a line intersecting the underwater structure are compared to one another to determine an amplitude and frequency of any vibration present in the underwater structure. For detecting temperature, the ratio of different components of return signals obtained from a point in the water surrounding the underwater structure is measured to derive the temperature of the water. Leak detection can be performed by scanning areas around the underwater structure. Monitoring systems can include a primary receiver for range measurements, and first and second temperature channel receivers for temperature measurements.