Flexible eddy current sensor array for proximity sensing

Chen, Xianglin; Ding, Tianhuai

doi:10.1016/j.sna.2006.06.056

Cited by 68 publications

(29 citation statements)

References 13 publications

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“…The conformable array was designed to transform discrete measurements into a two-dimensional scan (image). A similar technology was reported by [15]. The conformable array can be easily adapted to the surface curvature of pipes, however, this entails excavation and cleaning to expose the bare pipe.…”

Section: Conformable and Flexible Eddy Current Arraymentioning

confidence: 94%

State-of-the-Art Review of Technologies for Pipe Structural Health Monitoring

Liu¹,

Kleiner²

2012

IEEE Sensors J.

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1109/JSEN.2011.2181161 Sensors Journal, 12, 6, pp. 1987-1992, 2012 State of the art review of technologies for pipe structural health monitoring Liu, Z.; Kleiner, Y. IEEEState of the art review of technologies for pipe structural health monitoring Liu, Z.; Kleiner, Y. NRCC-54585A version of this document is published in IEEE Sensors Journal, 12, (6), pp. 1987-1992, June-01-12, 10.1109/JSEN.2011 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. Abstract Advances in electronics, sensor technology, information science, electrical and computer engineering give rise to emerging technologies, some of which could be applied to the inspection, monitoring, and condition assessment of buried water mains. This paper presents a state of the review of sensor technologies used for monitoring indicators pointing to pipe structural deterioration. The potential for multi-sensor system and sensor data fusion for condition-based maintenance are also discussed.

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Section: Conformable and Flexible Eddy Current Arraymentioning

confidence: 94%

State-of-the-Art Review of Technologies for Pipe Structural Health Monitoring

Liu¹,

Kleiner²

2012

IEEE Sensors J.

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“…Usage Corrosion rate sensor Measure electrical resistance, which can be used to calculate corrosion rate [49] Acoustic emission sensor Acoustic monitoring for acoustic events such as wire break [50] Magnetostrictive sensor Any discontinuities such as cracks [51], [52], [53] Conformable and flexible eddy current array Measure pitting corrosion [54], [55] Flexible ultrasonic transducer Measure thickness loss [56], [57] Guided wave sensor Detect corrosion and defects [58], [59] Damage sensor Measure defects [60] Microwave backscattering sensor Detect nonhomogeneities, such as holes caused by erosion and humidity changes [61] Fiber optic sensor monitor corrosion [62], [50] detection and monitoring is given in Fig. 2, which comprises both testing and computing technologies.…”

Section: Sensormentioning

confidence: 99%

Computational Intelligence for Urban Infrastructure Condition Assessment: Water Transmission and Distribution Systems

Liu

Kleiner

2014

IEEE Sensors J.

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=4ff847c4-1867-4c6d-8c41-478336da86f8 http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=4ff847c4-1867-4c6d-8c41-478336da86f8 Abstract-Water transmission and distribution systems are critical urban infrastructure. The aging of water mains can lead to increased breakage rate, decreased hydraulic capacity, and deterioration of water quality. Condition assessment of water mains encompasses building computational model of failures, discerning distress indicators from inspection, rating health condition, and forecasting future failures. In this process, computational intelligence helps to achieve high-level awareness of system condition and facilitates the decision making in water main renewal and rehabilitation by using the combined information from field knowledge, historical records, inspection results, and sensory data. This paper reviews computational approaches to achieve condition assessment of water mains. Inspection and sensor technologies involved in the assessment process are also briefly discussed.

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“…While lateral displacement of coil occurs, eddy current effect in conductor changes periodically. The change in the magnetic field is sensed as a change of coil inductance [9]. So displacement of a coil can be converted into inductance variation of each coil.…”

Section: System Design and Principlementioning

confidence: 99%