GB714564A - Improvements in or relating to method and apparatus for the ultrasonic inspection of solid objects - Google Patents
Improvements in or relating to method and apparatus for the ultrasonic inspection of solid objectsInfo
- Publication number
- GB714564A GB714564A GB30644/52A GB3064452A GB714564A GB 714564 A GB714564 A GB 714564A GB 30644/52 A GB30644/52 A GB 30644/52A GB 3064452 A GB3064452 A GB 3064452A GB 714564 A GB714564 A GB 714564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- angle
- waves
- degrees
- relating
- ultrasonic inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
- G01N2291/0421—Longitudinal waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
- G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
714,564. Ultrasonic couplings. SPERRY PRODUCTS, Inc. Dec. 3, 1952 [Jan. 15, 1952], No. 30644/52. Class 40 (4) [Also in Group XXXVIII] A method of inspecting or testing an object 10 for defects such as a very shallow discontinuity 11 (see Groups XXXVIII) comprises generating surface waves along the respective surface of the object by transmitting ultra,- sonic vibrations to said object at an angle of incidence #<SP>3</SP> greater than the critical angle for shear waves within the object. A quartz crystal 15 fed by a pulse generator 16 is supported on a coupling wedge 20 at an angle #<SP>3</SP> to the surface 12 such that shear waves (and, therefore, the faster longitudinal waves) are totally reflected and only surface waves, Fig. 5 (not shown), are set up in the object 10. The critical angle for steel using a lucite wedge is stated to be 57 degrees and the angle #<SP>3</SP> in this case must, therefore, be greater than 57 degrees. Specification 663,064 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US714564XA | 1952-01-15 | 1952-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB714564A true GB714564A (en) | 1954-09-01 |
Family
ID=22101441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30644/52A Expired GB714564A (en) | 1952-01-15 | 1952-12-03 | Improvements in or relating to method and apparatus for the ultrasonic inspection of solid objects |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1067479A (en) |
GB (1) | GB714564A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2912854A (en) * | 1955-05-27 | 1959-11-17 | Gen Motors Corp | Ultrasonic surface testing device |
US3070761A (en) * | 1953-05-07 | 1962-12-25 | Smith & Sons Ltd S | Ultrasonic delay lines |
US3074268A (en) * | 1958-08-21 | 1963-01-22 | Sperry Prod Inc | Temperature compensation for transmission through liquid |
GB2139757A (en) * | 1983-05-12 | 1984-11-14 | Secr Defence | Method of ultrasonic non-destructive testing |
-
1952
- 1952-12-03 GB GB30644/52A patent/GB714564A/en not_active Expired
- 1952-12-05 FR FR1067479D patent/FR1067479A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3070761A (en) * | 1953-05-07 | 1962-12-25 | Smith & Sons Ltd S | Ultrasonic delay lines |
US2912854A (en) * | 1955-05-27 | 1959-11-17 | Gen Motors Corp | Ultrasonic surface testing device |
US3074268A (en) * | 1958-08-21 | 1963-01-22 | Sperry Prod Inc | Temperature compensation for transmission through liquid |
GB2139757A (en) * | 1983-05-12 | 1984-11-14 | Secr Defence | Method of ultrasonic non-destructive testing |
Also Published As
Publication number | Publication date |
---|---|
FR1067479A (en) | 1954-06-16 |
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