Multi-sensor inspection for identification of pressurized pipe defects that leak

    公开(公告)号:US10557772B2

    公开(公告)日:2020-02-11

    申请号:US15940577

    申请日:2018-03-29

    Abstract: The system utilizes conductivity equipment as well as a camera, pressure sensor, and acoustic hydrophone within a probe deployed via cable into a pipe to be inspected. The probe completes an electric circuit back to ground when the probe is adjacent a defect through which electric currents can pass, thus producing varying electric current. The camera, incorporated into the electric probe, is utilized for both inspection and navigation through the pipe by providing a close-circuit video data feed. The pressure sensor detects alterations in the pressure and flow field of the fluidic region in the area of a leak. The acoustic hydrophone listens for the sound leaks in a pressurized pipeline. The inspection device is tethered to a cable and inserted a measured distance into the pipeline, typically with the pipeline under pressure, via a launch tube. Multi-sensor data versus pipeline position is thus obtained.

    INFRARED LEAK DETECTION SYSTEM
    52.
    发明申请

    公开(公告)号:US20200030726A1

    公开(公告)日:2020-01-30

    申请号:US16045856

    申请日:2018-07-26

    Abstract: A leak detection system for a water filter includes a filter cartridge with an infrared graphical index on an outer surface of the filter cartridge. An infrared camera is configured for capturing an image of the infrared graphical index on the outer surface of the filter cartridge. A controller is configured for comparing the image of the infrared graphical index on the outer surface of the filter cartridge to a reference image and for determining that the filter cartridge is leaking when a difference between the image of the infrared graphical index on the outer surface of the filter cartridge and the reference image is greater than a threshold difference.

    COMPOSITE PIPE ASSEMBLY
    53.
    发明申请

    公开(公告)号:US20190391036A1

    公开(公告)日:2019-12-26

    申请号:US16361697

    申请日:2019-03-22

    Inventor: Dale FAULKNER

    Abstract: A pipe assembly comprising a composite pipe, and end connector provided at an end of the pipe, and means for providing a visual indication of impact damage to the pipe, the means for providing a visual indication of impact damage to the pipe comprising a thin sleeve mounted around, but spaced from, a pipe body of the composite pipe, whereby at each end of the pipe body, the pipe body, the sleeve and the end connector are preferably sealingly fitted together, and wherein the sleeve is configured to provide a visual indication indicative of an impact acting on the sleeve even if the impact does not reach the pipe body.

    Methods and Apparatus for Detection of Leaks in Underground Storage Tanks

    公开(公告)号:US20190285506A1

    公开(公告)日:2019-09-19

    申请号:US16353923

    申请日:2019-03-14

    Applicant: CGRS, Inc.

    Inventor: Eric L. Hick

    Abstract: A system for the non-volumetric detection of low-threshold leaks with high resolution in underground storage tanks (USTs). A UST may be located underground with a restricted tank entry opening. The interior space of a UST may be accessed with a remotely controlled device. The presence of a liquid fill material or indicia thereof evidencing a leak may be visually observed. Variables affecting volumetric measurements of leak detection, such as temperature, pressure, tank deflection, and groundwater, may be eliminated or controlled. Visual observation may enable high resolution detection of low-threshold leaks.

    Device and method for testing and inspecting integrity of a container

    公开(公告)号:US10261030B2

    公开(公告)日:2019-04-16

    申请号:US15551359

    申请日:2016-02-17

    Abstract: An inspection device and method for testing and inspecting integrity of a container (200) is disclosed. The inspection device has an angled member (102) and a viewing member (104) secured to the angled member. Together, the angled and viewing members are configured to hold a container to be analyzed. The inspection device also includes a cradle (106) secured to the angled member, the cradle including a cavity (108) configured to hold the angled member at an angle. The inspection device also includes a light source holder (110) secured to the viewing member, a leg member (112) extending from the light source holder, and at least one light source (114) extending through the light source holder. The light source has a first end extending outwardly from the light source holder and a second end extending within the light source holder from which light projects. The light from the light source is projected toward the viewing member. The viewing member includes at least one viewing window (105). A lens is located between the second end of the light source and the viewing member, and a filter is located between the lens and the viewing member.

    BACKGROUND RADIANCE ESTIMATION AND GAS CONCENTRATION-LENGTH QUANTIFICATION METHOD FOR OPTICAL GAS IMAGING CAMERA

    公开(公告)号:US20190101490A1

    公开(公告)日:2019-04-04

    申请号:US15720708

    申请日:2017-09-29

    Abstract: A gas concentration-length quantification method may include acquiring a first image including a gas plume with a camera; identifying and segmenting pixels corresponding to the gas plume in the first image; creating a mask image corresponding to the first image, where only pixels of the mask image corresponding to the gas plume in the first image have non-zero values; generating a background image corresponding to the first image using an image inpainting algorithm with the first image and the mask image as inputs; calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data; and triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.

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