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APPLICATION OF POLY-HARMONIC SIGNALS TO EDDY-CURRENT METAL DETECTORS AND TO ADVANCED CLASSIFICATION OF METALS

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00319582" target="_blank" >RIV/68407700:21230/18:00319582 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.metrology.pg.gda.pl/archives.html" target="_blank" >http://www.metrology.pg.gda.pl/archives.html</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.24425/119564" target="_blank" >10.24425/119564</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    APPLICATION OF POLY-HARMONIC SIGNALS TO EDDY-CURRENT METAL DETECTORS AND TO ADVANCED CLASSIFICATION OF METALS

  • Original language description

    A limited ability to discriminate between different materials is a fundamental problem with all conventional eddy current based metal detectors. This article presents the use, evaluation and classification of non-traditional excitation signals for eddy current metal detectors to improve its detection and discrimination ability. The presented multi-frequency excitation signals are the following: a step sweep sine wave, a linear frequency sweep and sin(x)/x signals. All signals are evaluated in a frequency domain. An amplitude and a phase spectra and polar graphs of a detector output signal are used for a classification and discrimination of the tested objects. Four different classifiers are presented. The comparison of classification results of polyharmonic signals with the classical single tone method is also shown. Multi-frequency signals offer more detailed information, due to response function – the frequency characteristic of a detected object, than the application of standard single tone methods. Based on the measurements and analysis, a metal object can be better distinguished than when using the single tone method.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Metrology and Measurement Systems

  • ISSN

    0860-8229

  • e-ISSN

    2300-1941

  • Volume of the periodical

    25

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    PL - POLAND

  • Number of pages

    16

  • Pages from-to

    387-402

  • UT code for WoS article

    000439051900010

  • EID of the result in the Scopus database

    2-s2.0-85052202354