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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Metrology and Measurement Systems

ISSN

0860-8229

e-ISSN

2300-1941

Svazek periodika

25

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

16

Strana od-do

387-402

Kód UT WoS článku

000439051900010

EID výsledku v databázi Scopus

2-s2.0-85052202354