Error analysis and calibration for a novel pipe profiling tool

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Jackson, William and Dobie, Gordon and MacLeod, Charles and West, Graeme and Mineo, Carmelo and McDonald, Liam (2019) Error analysis and calibration for a novel pipe profiling tool. IEEE Sensors Journal. ISSN 1530-437X (https://doi.org/10.1109/JSEN.2019.2960939)

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Abstract

Integrity of industrial pipework is ensured through routine inspection. Internal visual inspection tools are capable of characterising degradation in the form of corrosion, pitting, erosion and cracking. The accuracy of such inspection systems has a direct impact on decisions regarding the remaining lifetime of the asset. By minimising error margins, the asset may be operated with confidence for longer, with less uncertainty. This paper considers a probe system consisting of a laser profiler and camera that produces a textured 3D model of the internals of 2 – 6 inch pipework. The accuracy of the system is defined by the ability to extract laser projections from an image as it travels down the pipe, to accurately reconstruct these projections into 3D and to estimate the probe trajectory as it travels through the pipe. This paper presents an error model of the laser profiler. It then presents a novel calibration routine to reduce the error caused by misalignment and tolerances during fabrication of the system. A key advantage of the proposed calibration technique over alternatives is that we can calibrate for errors without manually adjusting the probe, which enables fabrication of a smaller more robust measurement system. In lab-based trials our calibration technique reduced peak sizing errors from 2.7mm to 0.14mm in 120mm diameter pipes.

ORCID iDs

Jackson, William ORCID logoORCID: https://orcid.org/0000-0002-1360-4722, Dobie, Gordon ORCID logoORCID: https://orcid.org/0000-0003-3972-5917, MacLeod, Charles ORCID logoORCID: https://orcid.org/0000-0003-4364-9769, West, Graeme ORCID logoORCID: https://orcid.org/0000-0003-0884-6070, Mineo, Carmelo ORCID logoORCID: https://orcid.org/0000-0002-5086-366X and McDonald, Liam;
  • Item type:Article
    ID code:71207
    Dates:
    Date
    Event
    19 December 2019
    Published
    19 December 2019
    Published Online
    11 December 2019
    Accepted
    2 August 2019
    Submitted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:24 Jan 2020 16:18
    Last modified:21 Dec 2024 01:20
    URI:https://strathprints.strath.ac.uk/id/eprint/71207
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