A dual-function inductive sensor for imaging steel, corrosion products and graphite based materials

G. Miller, P. Gaydecki, M. Zaid, B. Fernandes, V. Torres

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    An inductive sensor is described that combines both Q-detection and heterodyne technology. By exploiting the change in amplitude and frequency of the received signals, it may be used for imaging steel reinforcement bars, surface corrosion and, generally, materials with different permeability and conductivity ratios. Real time digital signal processing is used to improve the signal to noise ratio of the sensor and to provide a feedback stabilization mechanism for the reduction of long-term drift.

    Original languageEnglish
    Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation Volume 24
    Pages1592-1599
    Number of pages8
    Volume760
    DOIs
    Publication statusPublished - 9 Apr 2005
    EventReview of Progress in Quantitative Nondestructive Evaluation - Golden, CO, United States
    Duration: 25 Jul 200430 Jul 2004

    Conference

    ConferenceReview of Progress in Quantitative Nondestructive Evaluation
    Country/TerritoryUnited States
    CityGolden, CO
    Period25/07/0430/07/04

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