SU697916A1 - Method of obtaining acoustic contact at ultrasonic measurements - Google Patents
Method of obtaining acoustic contact at ultrasonic measurementsInfo
- Publication number
- SU697916A1 SU697916A1 SU782603751A SU2603751A SU697916A1 SU 697916 A1 SU697916 A1 SU 697916A1 SU 782603751 A SU782603751 A SU 782603751A SU 2603751 A SU2603751 A SU 2603751A SU 697916 A1 SU697916 A1 SU 697916A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acoustic contact
- ultrasonic measurements
- product
- obtaining acoustic
- contact
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
Изобретение относитс к области ультразвуковой дефектоскопии и может быть применено дл дефектоскопии издели со сложной поверхностью в труднодоступных местах. Известен способ создани акустического контакта при ультразвуковых измерени х, заключающийс в помещении трубки с каплей жидкости между из лучателем и измер емым изделием 1. Недостатком известного способа создани акустического контакта вл етс то, что он имеет ;1изкие техничес кие возможности и узкий диапазон применени , так как на каждую криволиней ную поверхность нужно иметь трубочку соответствующего профил . Наиболее близким по технической сущности к изобретению вл етс способ создани акустического контакта при ультразвуковых измерени х, заключающийс в помещении контактной жидкости между излучателем и провер емьм изделием 2. Однако такой способ имеет малые технические возможности, то есть при псмощи капли можно создать акустический контакт только в неглубоких выемках издели , так как в ином случае нарушаетс акустический контакт между изделием и излучателем. Дл осуществлени сканировани необходимо, чтобы поверхность издели была токопровод щей , что не всегда возможно, так как издели не всегда изготовлены из металла, а также не всегда допустимо прохождение тока по поверхности контролируемого издели . Цель изобретени - повышение надежности контакта и расширение технических возможностей. Это достигаетс за счет того, что в качестве контактной жидкости используют жидкость, обладающую ферромагнитными свойствами, которую, нанос т на поверхность излучател ,а акустический контакт создают направленным магнитным полем. На чертеже показано устройство, реализующее предлагаемый способ. Устройство содержит излучатель 1, на -есенную на его поверхность жидкость 2, обладающую ферромагнитными свойствами, провер емое изделие 3, магнит 4, создающий направленное магнитное поле, воздушный зазор 5 между жидкостью и изделием и столб 6 жидкости ,The invention relates to the field of ultrasonic flaw detection and can be applied for the inspection of a product with a complex surface in hard-to-reach places. There is a method of creating acoustic contact with ultrasonic measurements, which consists in placing a tube with a drop of liquid between the transducer and the measured product 1. A disadvantage of the known method of creating acoustic contact is that it has very limited technical capabilities and a narrow range of application As for each curvilinear surface, it is necessary to have a tube of a corresponding profile. The closest to the technical essence of the invention is the method of creating acoustic contact with ultrasonic measurements, which consists in placing the contact liquid between the radiator and the inspected product 2. However, this method has little technical capabilities, i.e. shallow grooves of the product, since otherwise the acoustic contact between the product and the radiator is broken. In order to carry out the scanning, it is necessary that the surface of the product be conductive, which is not always possible, since the products are not always made of metal, and the current does not always pass along the surface of the product being tested. The purpose of the invention is to increase the reliability of contact and the expansion of technical capabilities. This is achieved due to the fact that a liquid with ferromagnetic properties is used as a contact liquid, which is applied to the surface of the radiator, and the acoustic contact is created by a directed magnetic field. The drawing shows a device that implements the proposed method. The device contains an emitter 1, a liquid 2 having a ferromagnetic properties on the surface of its surface, a verifiable product 3, a magnet 4 creating a directional magnetic field, an air gap 5 between the liquid and the product, and a column 6 of liquid
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782603751A SU697916A1 (en) | 1978-04-13 | 1978-04-13 | Method of obtaining acoustic contact at ultrasonic measurements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782603751A SU697916A1 (en) | 1978-04-13 | 1978-04-13 | Method of obtaining acoustic contact at ultrasonic measurements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU697916A1 true SU697916A1 (en) | 1979-11-15 |
Family
ID=20759360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782603751A SU697916A1 (en) | 1978-04-13 | 1978-04-13 | Method of obtaining acoustic contact at ultrasonic measurements |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU697916A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011405A1 (en) * | 1991-11-29 | 1993-06-10 | Dmitry Gennadievich Tretjyakov | Displacement transducer |
-
1978
- 1978-04-13 SU SU782603751A patent/SU697916A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011405A1 (en) * | 1991-11-29 | 1993-06-10 | Dmitry Gennadievich Tretjyakov | Displacement transducer |
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