SU976370A1 - Method of locating position of acoustic emission source in articles - Google Patents

Method of locating position of acoustic emission source in articles Download PDF

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Publication number
SU976370A1
SU976370A1 SU813275886A SU3275886A SU976370A1 SU 976370 A1 SU976370 A1 SU 976370A1 SU 813275886 A SU813275886 A SU 813275886A SU 3275886 A SU3275886 A SU 3275886A SU 976370 A1 SU976370 A1 SU 976370A1
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SU
USSR - Soviet Union
Prior art keywords
acoustic emission
articles
emission source
locating position
transducers
Prior art date
Application number
SU813275886A
Other languages
Russian (ru)
Inventor
Владимир Константинович Анисимов
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За витель
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Priority to SU813275886A priority Critical patent/SU976370A1/en
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Publication of SU976370A1 publication Critical patent/SU976370A1/en

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Description

Изобретение относитс  к , неразрушаю . щему контролю и может быть, использован дл  определе1га  местоположени  источник сигналов акустической эмиссии в издели х . Известен способ определени  местополо жени  источников сигналов акустической эмиссии, заключак цийс  в том, что разме щают преобразователи по углам пр моугольника , измер ют разности Времен прихода сигналов акустической эмиссии на разные преобразователи, по которым определ ют местоположение источника сигна . . Наиболее близким по технической сущности к изобретению  вл етс  способ опре делени  местоположени  источников сигналов акустической эмиссии, в издели х заключающийс  в том, что разбивают поверхность издели  на зоны, размещают в каждой из зон преобразователь, принимают сигналы акустической эмиссии, определ ют преобразователь, прин вший сигнал первым, по которому суд т о местоположении источника 2 J . Недостатком этих способов  вл етс  невысока  точность определени  местоположени  источников сигналов. Цель изобретени  - повышение точности. Эта цель достигаетс  за счет того, что согласно способу определени  местоположени  источников сигналов акустической эмиссии, заключающемус  в том, что разбивают поверхность издели  на зоны, размещают в каждой из зон преобразователь,. принимают сигналы акустической эмиссии, определ ют преобразователь, прин вший сигнал первым, по которому суд т о мес« тоположении источника, преобразователи размещают по взаимно перепендикул рным лини м, определ ют преобразователи, прин више сигнал первыми , раздельно дл  каждой из линий, и определ ют участок пересечени  зон, соответствующих этим преобразовател м . Способ заключаетс  в следуюихем.The invention relates to non-destructive. control and can be used to determine the location of the source of acoustic emission signals in the products. There is a known method for determining the location of sources of acoustic emission signals, concluding with placing transducers at the corners of a rectangle, measuring the difference between the arrival times of acoustic emission signals at different transducers, which determine the location of the signal source. . The closest to the technical essence of the invention is a method for determining the location of sources of acoustic emission signals, in products consisting in breaking the surface of the product into zones, placing the converter in each of the zones, receiving acoustic emission signals, determining the converter that received the signal is the first to judge the location of the source 2 j. The disadvantage of these methods is the low accuracy in determining the location of signal sources. The purpose of the invention is to improve accuracy. This goal is achieved due to the fact that, according to the method of determining the location of the sources of acoustic emission signals, which consists in breaking the surface of the product into zones, a transducer is placed in each of the zones. Acoustic emission signals are received, a transducer is detected, the signal is received first, according to which the source is positioned, transducers are placed along mutually perpendicular lines, transducers are determined, the signal is transmitted first, separately for each of the lines, and The intersection of the zones corresponding to these transducers. The method is as follows.

Размещают на поверхности издели  преобразователи по двум Взаимно перпевдикул рным пини м. Принимают сигналы акустической эмиссии от источника сигналов, расположенного внутри пр моугольника со сторонами равными рассто нию, на котором расположены преобразователи.Transducers are placed on the product surface by two mutually perpendicular pins. Acceptance signals are received from a signal source located inside a rectangle with sides equal to the distance on which the transducers are located.

Определ ют два преобразовател , прин вших сигнал первыми, раздельно дл  каждой из линий их расположени . Опредеп ют дл  каждого из этих преофазователей зону на поверхности издели , в которой преобразователь прин л сигнал первы Местом расположени  источника сигналов  вл етс  участок пересечени  зон, соот- Ветствукших преобразовател м на разных лини х, прин вшим сигнал первыми.Two transducers, which receive the signal first, are determined separately for each of the lines of their location. For each of these pre-phaseters, a zone is defined on the surface of the product in which the transducer received the first signal. The location of the source of signals is the area of intersection of the zones corresponding to the transducers on different lines, which received the signal first.

Claims (2)

1.Авторское свидетельство СССР N° 725016, кл. G01 N 2.9/04, 1977.1. USSR author's certificate N ° 725016, cl. G01 N 2.9 / 04, 1977. 2.Патент Великобритании № 1. 391. 175, кл. GOlM 29/04, 1975 (прототип).2.Patent of Great Britain No. 1. 391. 175, cl. GOLM 29/04, 1975 (prototype).
SU813275886A 1981-04-14 1981-04-14 Method of locating position of acoustic emission source in articles SU976370A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813275886A SU976370A1 (en) 1981-04-14 1981-04-14 Method of locating position of acoustic emission source in articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813275886A SU976370A1 (en) 1981-04-14 1981-04-14 Method of locating position of acoustic emission source in articles

Publications (1)

Publication Number Publication Date
SU976370A1 true SU976370A1 (en) 1982-11-23

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Family Applications (1)

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SU813275886A SU976370A1 (en) 1981-04-14 1981-04-14 Method of locating position of acoustic emission source in articles

Country Status (1)

Country Link
SU (1) SU976370A1 (en)

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