Published 1980
| Version v1
Miscellaneous
Investigations about coarse grained materials especially with signal averaging
Creators
- 1. Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V., Saarbruecken (Germany, F.R.). Inst. fuer Zerstoerungsfreie Pruefverfahren
Description
The ultrasonic inspection of coarse grained materials is strongly influenced by backscattered ultrasound (grass, coherent noise). The signal to noise ratio becomes as bad that an echo coming up from a defect cannot be surely separated from those from the grass. The actual methods for improving the signal to noise ratio are mentioned, the signal averaging technique is described in detail. (orig.)
Availability note (English)
Available from Fachinformationszentrum Karlsruhe.Abstract (German)
Die Ultraschall-Pruefung grobkoerniger Werkstoffe wird durch einen hohen Streuuntergrund (Gras, kohaerentes Rauschen) stark beeinflusst. Das Signal-Rausch-Verhaeltnis ist so schlecht, dass ein Fehlerecho nicht mehr sicher vom Streuuntergrund getrennt werden kann. Die heute benutzten Verfahren zur Verbesserung des Signal-Rausch-Verhaeltnisses werden kurz besprochen, das Signalmittelungsverfahren naeher beschrieben. (orig.)Additional details
Additional titles
- Original title (German)
- Untersuchungen schwerpruefbarer Werkstoffe mit Ultraschall, insbesondere mit Signalmitteilung
Publishing Information
- Imprint Title
- New methods of non-destructive testing of materials and their application especially in nuclear engineering
- Journal Page Range
- p. 153-161.
Conference
- Title
- International symposium on new methods of non-destructive testing of materials and their application especially in nuclear engineering.
- Dates
- 17 - 19 Sep 1979.
- Place
- Saarbruecken, Germany, F.R.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 11544576
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- BACKSCATTERING; INSPECTION; NOISE; PATTERN RECOGNITION; REACTOR MATERIALS; SIGNALS; ULTRASONIC TESTING; ULTRASONIC WAVES
- Descriptors DEC
- ACOUSTIC TESTING; MATERIALS TESTING; NONDESTRUCTIVE TESTING; SCATTERING; SOUND WAVES; TESTING
Optional Information
- Notes
- Imprint:Neue Verfahren der zerstoerungsfreien Werkstoffpruefung und deren Anwendungen insbesondere in der Kerntechnik.;Vortraege.