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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 objects

Info

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
Application number
GB30644/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Products Inc
Original Assignee
Sperry Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sperry Products Inc filed Critical Sperry Products Inc
Publication of GB714564A publication Critical patent/GB714564A/en
Expired legal-status Critical Current

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.
GB30644/52A 1952-01-15 1952-12-03 Improvements in or relating to method and apparatus for the ultrasonic inspection of solid objects Expired GB714564A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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