RU2002255C1 - Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials - Google Patents

Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials

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Publication number
RU2002255C1
RU2002255C1 SU914951347A SU4951347A RU2002255C1 RU 2002255 C1 RU2002255 C1 RU 2002255C1 SU 914951347 A SU914951347 A SU 914951347A SU 4951347 A SU4951347 A SU 4951347A RU 2002255 C1 RU2002255 C1 RU 2002255C1
Authority
RU
Russia
Prior art keywords
depth
ferromagnetic materials
current flaw
eddy
electroconducting
Prior art date
Application number
SU914951347A
Other languages
Russian (ru)
Inventor
Сергей Петрович Малышев
Надежда Ивановна Олефиренко
Original Assignee
Сергей Петрович Малышев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Сергей Петрович Малышев filed Critical Сергей Петрович Малышев
Priority to SU914951347A priority Critical patent/RU2002255C1/en
Application granted granted Critical
Publication of RU2002255C1 publication Critical patent/RU2002255C1/en

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  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

Изобретение относитс  к нерчзрушающему контролю, а именно к вихретоковым дефектоскопам, и может быть использовано дл  обнаружени  дефектов и измерени  их глубины в издели х из электропровод щих ферромагнитных материалов. Целью изобетени   вл етс  повышение помехоустойчивости и информативности за счет обеспечени  контрол  также и глубины дефектов Выходное напр жение функционального усилител  8 находитс  в линейной зависимости от глубины дефекта, а величина глубины дефекта отражена на шкале показывающего прибора 11. Пороговое устройство обеспечивает необходимый регулируемый уровень сигнала, поступающий через селектор 13 импульсов по длительности в блок 14 индикации. Пороговое устройство 12 формирует сигналы, поступающие на его вход в пр моугольные импульсы, что необходимо дл  работы селектора 13, который обеспечивает прохождение сигналов в заданном диапазоне их длительности Это позвол ет повысить помехоустойчивость от помех и электромагнитных неодно- родностей поверхности контролируемой детали 3 идThe invention relates to non-destructive testing, and in particular to eddy current flaw detectors, and can be used to detect defects and measure their depth in products from electrically conductive ferromagnetic materials. The purpose of the invention is to increase the noise immunity and information content by also controlling the depth of defects. The output voltage of the functional amplifier 8 is linearly dependent on the depth of the defect, and the magnitude of the depth of the defect is shown on the scale of the indicating device 11. The threshold device provides the necessary adjustable signal level through the selector 13 pulses in duration in block 14 indication. The threshold device 12 generates signals arriving at its input into rectangular pulses, which is necessary for the operation of the selector 13, which ensures the passage of signals in a given range of their duration. This allows to increase the noise immunity from interference and electromagnetic inhomogeneities of the surface of the controlled part 3 id

SU914951347A 1991-06-27 1991-06-27 Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials RU2002255C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU914951347A RU2002255C1 (en) 1991-06-27 1991-06-27 Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU914951347A RU2002255C1 (en) 1991-06-27 1991-06-27 Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials

Publications (1)

Publication Number Publication Date
RU2002255C1 true RU2002255C1 (en) 1993-10-30

Family

ID=21582367

Family Applications (1)

Application Number Title Priority Date Filing Date
SU914951347A RU2002255C1 (en) 1991-06-27 1991-06-27 Eddy-current flaw detector for testing articles fabricated of electroconducting ferromagnetic materials

Country Status (1)

Country Link
RU (1) RU2002255C1 (en)

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