Methods and devices for inspection of pipelines

    公开(公告)号:US11125725B2

    公开(公告)日:2021-09-21

    申请号:US16075525

    申请日:2017-02-03

    IPC分类号: G01N29/11 G01N29/04 G01N29/24

    摘要: Systems and methods for inspection of pipelines are disclosed herein. In one embodiment, an electromagnetic acoustic transducer (EMAT) transceiver (TRX) for inspecting a pipe includes a multichannel EMAT transmitter (TX) having multiple collocated transmitter coils. The EMAT TX can generate forward-propagating ultrasound waves and backward-propagating ultrasound waves. The forward-propagating ultrasound waves have higher amplitude than the backward-propagating ultrasound waves. The EMAT TRX also includes a multichannel EMAT receiver (RX) having multiple receiver coils that can receive the ultrasound waves transmitted by the EMAT TX through the pipe.

    INDOORS POSITIONING AND NAVIGATION SYSTEMS AND METHODS

    公开(公告)号:US20210048821A1

    公开(公告)日:2021-02-18

    申请号:US16964565

    申请日:2020-03-19

    摘要: Indoors positioning and navigation systems and methods are described herein. In one embodiment, a system for inspecting or maintaining a storage tank includes a vehicle having: at least one sensor for determining properties of a storage tank and a navigation system. The navigation system includes an acoustic transmitter carried by the vehicle and an inertial measurement unit (IMU) sensor configured to at least partially determine a location of the vehicle with respect to the storage tank. The vehicle also includes a propulsion unit configured to move the vehicle within the storage tank, and an acoustic receiver fixed with respect to the storage tank. The vehicle moves inside the storage tank in concentric arcs with respect to the acoustic receiver.

    CORROSION RATE MONITORING USING ULTRASOUND, AND ASSOCIATED SYSTEMS AND METHODS

    公开(公告)号:US20200209143A1

    公开(公告)日:2020-07-02

    申请号:US16639097

    申请日:2018-08-14

    发明人: Ali Minachi

    IPC分类号: G01N17/04

    摘要: Systems and methods for determining rate of corrosion in pipes and other structures are disclosed herein. In one embodiment, a method for measuring a rate of corrosion progress in a specimen includes: generating a first initial pulse into the specimen by an ultrasonic transducer, and acquiring a first reflected waveform from the specimen. The first reflected waveform includes a first reflection of the first waveform and a second reflection of the first waveform. The method also includes generating a second initial pulse into the specimen by the ultrasonic transducer. The first initial pulse and the second initial pulse are separated by a time period. The method also includes acquiring a second reflected waveform from the specimen. The second reflected waveform includes a first reflection of the second waveform and a second reflection of the second waveform.

    Corrosion rate monitoring using ultrasound, and associated systems and methods

    公开(公告)号:US11119031B2

    公开(公告)日:2021-09-14

    申请号:US16639097

    申请日:2018-08-14

    发明人: Ali Minachi

    摘要: Systems and methods for determining rate of corrosion in pipes and other structures are disclosed herein. In one embodiment, a method for measuring a rate of corrosion progress in a specimen includes: generating a first initial pulse into the specimen by an ultrasonic transducer, and acquiring a first reflected waveform from the specimen. The first reflected waveform includes a first reflection of the first waveform and a second reflection of the first waveform. The method also includes generating a second initial pulse into the specimen by the ultrasonic transducer. The first initial pulse and the second initial pulse are separated by a time period. The method also includes acquiring a second reflected waveform from the specimen. The second reflected waveform includes a first reflection of the second waveform and a second reflection of the second waveform.