Improvements to dry-coupled ultrasound for wall thickness and weld inspection
UNSPECIFIED. (1999) Improvements to dry-coupled ultrasound for wall thickness and weld inspection. INSIGHT, 41 (11). pp. 704-706. ISSN 1354-2575Full text not available from this repository.
This paper describes results from a dual approach to tackle the problems associated with dry coupling. Various rubbers are examined for their ultrasonic properties and additional amplification is used to compensate for high-frequency losses. As a result, we have established that standard rubbers can be used as dry couplant materials for zero-degree longitudinal wave applications. A new dry couplant material has been discovered with good high-frequency transmission characteristics. With this material it has even been possible to produce dry-coupled angled shear waves transducers suitable for flaw detection in welds. The 'dry couplant' also has a very low acoustic impedance and can be used for matching air-coupled transducers.
|Item Type:||Journal Article|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Journal or Publication Title:||INSIGHT|
|Publisher:||BRITISH INST NON-DESTRUCTIVE TESTING|
|Official Date:||November 1999|
|Number of Pages:||3|
|Page Range:||pp. 704-706|
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