Thickness measuring of electroconductive pipe walls using the dual-frequency eddy-current method

Evgeny Yakimov, Olga Galtseva, Daniil Ustyugov

Результат исследований: Материалы для журналаСтатьярецензирование

3 Цитирования (Scopus)

Аннотация

The paper describes a dual-frequency method for reducing the impact of changes in the gap size between the eddy-current transducer and the pipe, as well as the pipe electrical conductivity on the eddy-current thickness gauge readings. A block-diagram of the dual-frequency eddy-current thickness gauge is proposed for light-alloy drill pipes. The amplitude and signal phase dependencies on the wall thickness in the range from 6 to 17 mm and the gap in the range from 0 to 13.5 mm were studied, the results are presented. The digital signal processing algorithms based on the piecewise-linear approximation of low-frequency and high-frequency signal phase dependencies on the wall thickness are proposed. It is shown that the proposed correction algorithms can reduce the error caused by variations of electrical conductivity and the gap between the transducer and the pipe.

Язык оригиналаАнглийский
Номер статьи012061
ЖурналJournal of Physics: Conference Series
Том783
Номер выпуска1
DOI
СостояниеОпубликовано - 19 янв 2017
Событие13th European Workshop on Advanced Control and Diagnosis, ACD 2016 - Lille, Франция
Продолжительность: 17 ноя 201618 ноя 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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