EP 0401643 A3 19920325 - ULTRASONIC TEST HEAD
Title (en)
ULTRASONIC TEST HEAD
Publication
Application
Priority
DE 8906992 U 19890607
Abstract (en)
[origin: EP0401643A2] An ultrasonic test head, suitable for transmission and reception, having a relatively broadband frequency spectrum and relatively short sound pulses for the contact-free testing of components in a fluid, especially for the volumetric testing of metallic components in liquid sodium up to 250 DEG C. This test head has a housing (1) which can be immersed in the fluid and, coupled therein in terms of sound, a piezoelement (7), a damping body (8) and a transformation layer, adjacent to the fluid, consisting of a film (6) which is soft with respect to sound and a film (4) which is hard with respect to sound and is supported externally on one or more webs (5) or on a grid formed from these webs (5). <IMAGE>
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP)
B06B 1/0662 (2013.01)
Citation (search report)
- [A] US 3935484 A 19760127 - LESCHEK WALTER C, et al
- [A] DE 3303412 A1 19840802 - KRAUTKRAEMER GMBH [DE]
- [AD] STAATLICHE MATERIALPR]FUNGSANSTALT UNIVERSIT[T STUTTGART, 12. MPA-Seminar, 9.-10. Oktober 1986, Band 1, Seiten 21.1 - 21.25; K. MATTHIES et al.: "Ultraschallpr}fung von Komponenten und Anlagen bei Temperaturen bis 250 Grade Celsius"
- [A] BRITISH JOURNAL OF NON-DESTRUCTIVE TESTING, Band 31, Nr. 5, Mai 1989, Seiten 259-264, Northampton, GB; J.R. FOTHERGILL et al.: "Development of high-temperature ultrasonic transducers for under-sodium viewing applications"
Designated contracting state (EPC)
BE DE FR GB IT
DOCDB simple family (publication)
EP 0401643 A2 19901212; EP 0401643 A3 19920325; DE 8906992 U1 19901004
DOCDB simple family (application)
EP 90110153 A 19900529; DE 8906992 U 19890607