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2 020 467

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Application

5006664/28, 1991-07-03

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Actual filing date

1991-07-03

(45)

Published

1994-09-30

(72)

Inventor

Аrzin А.Р.Zhukov V.L.Levin S.Ju.Оvchinnikov V.Р.Sajapin А.F.Fetisov G.О.Shijan V.Р.Shtejn Ju.G.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Jadernoj Fiziki Pri Тomskom Politekhnicheskom Universitete

METHOD FOR DETECTION OF THROUGH DEFECTS IN PIPELINES Russian patent published in 1994 - IPC

Abstract RU 2020467 C1

FIELD: nondestructive testing. SUBSTANCE: method includes excitation in pipeline with diameter D, as SHF wave guide system, of oscillations of the H11 type on working wave length λw ≅ 1.71 D and reception of signal radiated by through defect by means of highly sensitive receiver located at distance 1 from pipeline. EFFECT: increased length of continuously controlled length of pipeline. 1 dwg

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RU 2 020 467 C1

Authors

Аrzin А.Р.

Zhukov V.L.

Levin S.Ju.

Оvchinnikov V.Р.

Sajapin А.F.

Fetisov G.О.

Shijan V.Р.

Shtejn Ju.G.

Dates

1994-09-30—Published

1991-07-03—Filed

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