GB696920A - Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves - Google Patents

Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves

Info

Publication number
GB696920A
GB696920A GB635951A GB635951A GB696920A GB 696920 A GB696920 A GB 696920A GB 635951 A GB635951 A GB 635951A GB 635951 A GB635951 A GB 635951A GB 696920 A GB696920 A GB 696920A
Authority
GB
United Kingdom
Prior art keywords
time base
transducer unit
camera
transducer
movement
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
GB635951A
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.)
GLASS DEVELOPMENTS Ltd
Original Assignee
GLASS DEVELOPMENTS Ltd
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 GLASS DEVELOPMENTS Ltd filed Critical GLASS DEVELOPMENTS Ltd
Priority to GB635951A priority Critical patent/GB696920A/en
Publication of GB696920A publication Critical patent/GB696920A/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
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
    • G01N29/0627—Cathode-ray tube displays
    • 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
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • 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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0234—Metals, e.g. steel
    • 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

696,920. Ultrasonic inspection devices. GLASS DEVELOPMENTS, Ltd., and SPROULE, D. O. March 7, 1952 [March 16, 1951]. No. 6359/51. Drawings to Specification. Class 118 (ii). In a pulse-echo ultrasonic testing system, a two dimensional display of defects is produced by moving a transmitting and receiving piezo-electric crystal transducer unit over the surface of the test sample or by rotating a directional transducer unit on the surface thereof, the echo signals being applied to intensity modulate a cathode-ray tube whose time base is synchronised with the pulse transmission and the time base being displaced or rotated in correspondence with the movement of the transducer. Alternatively the time base is maintained stationary and photographed, the film or camera being displaced or rotated in correspondence with the transducer movement. The transducer unit may comprise separate transmitting and receiving transducers mounted as a single unit, Fig. 1 (not shown). The following combinations of movements are described: (1) rectilinear movement of transducer unit and of time base or camera, Figs. 1 and 2 (not shown), (2) rotation of transducer unit and of time base of camera, Figs. 3 and 4 (not shown), giving a radar P.P.I. type display and (3) rotation of transducer unit and rectilinear displacement of time base or camera. Figs. 5 and 6 (not shown), giving a radar B type display. In system (1) the ultrasonic beam is transmitted perpendicularly to the surface of the test sample but in systems (2) and (3) a beam Rayleigh (i.e. surface) waves is directed along the surface when searching for surface defects, e.g. cracks, and a beam of longitudinal or transverse waves making a small angle with the surface of the test piece is employed when detecting flaws in sheet metal. Since the intensity of the echo depends upon the angle of incidence of the impinging beam, the transducer unit in systems (2) and (3) may be moved along an arc of a circle with the suspected flaw as centre.
GB635951A 1952-03-16 1952-03-16 Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves Expired GB696920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB635951A GB696920A (en) 1952-03-16 1952-03-16 Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB635951A GB696920A (en) 1952-03-16 1952-03-16 Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves

Publications (1)

Publication Number Publication Date
GB696920A true GB696920A (en) 1953-09-09

Family

ID=9813079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB635951A Expired GB696920A (en) 1952-03-16 1952-03-16 Improvements in or relating to methods of testing materials for flaws and apparatus therefor utilizing ultrasonic waves

Country Status (1)

Country Link
GB (1) GB696920A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833999A (en) * 1953-09-28 1958-05-06 Douglas H Howry Transducer
US2908161A (en) * 1954-07-02 1959-10-13 Babcock & Wilcox Co Probe supporting means for ultrasonic testing of circumferentially extending butt welds
US2969671A (en) * 1956-02-10 1961-01-31 Glass Developments Ltd Ultrasonic flaw detecting apparatus
US3011339A (en) * 1957-11-07 1961-12-05 Automation Instr Inc Flaw detection apparatus
US3023611A (en) * 1956-03-19 1962-03-06 Douglass H Howry Ultrasonic method and apparatus for investigating the interior structure of solid bodies
US3024644A (en) * 1957-01-16 1962-03-13 Univ Illinois Ultrasonic microscope
DE1129321B (en) * 1959-06-09 1962-05-10 Transform Roentgen Matern Veb Ultrasound examination device working according to the reflection principle
US3063290A (en) * 1957-10-07 1962-11-13 John A Kaserman System for ultrasonic inspection of tubular objects
US3077769A (en) * 1957-01-25 1963-02-19 Smith & Sons Ltd S Flaw detection system using sonic and ultrasonic waves
US3086390A (en) * 1958-04-28 1963-04-23 Smith & Sons Ltd S Examination by ultrasonics of bodies having a non-planar surface
US3163784A (en) * 1956-08-11 1964-12-29 Realisations Ultrasoniques Soc Apparatus for continuous inspection of sheets and leaves
DE1214436B (en) * 1958-09-02 1966-04-14 Kelvin & Hughes Ltd Arrangement for the determination of defects in workpieces by means of sound or ultrasound
US3496764A (en) * 1967-03-27 1970-02-24 Cornell Res Foundation Inc Sonic inspection apparatus
DE2441768A1 (en) * 1973-09-05 1975-04-17 Akad Tekn Videnskaber METHOD AND DEVICE FOR ULTRASOUND TESTING
US3939697A (en) * 1972-08-28 1976-02-24 Akademiet For De Tekniske Videnskaber, Svejsecentralen Method and apparatus for ultrasonic examination

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833999A (en) * 1953-09-28 1958-05-06 Douglas H Howry Transducer
US2908161A (en) * 1954-07-02 1959-10-13 Babcock & Wilcox Co Probe supporting means for ultrasonic testing of circumferentially extending butt welds
US2969671A (en) * 1956-02-10 1961-01-31 Glass Developments Ltd Ultrasonic flaw detecting apparatus
US3023611A (en) * 1956-03-19 1962-03-06 Douglass H Howry Ultrasonic method and apparatus for investigating the interior structure of solid bodies
US3163784A (en) * 1956-08-11 1964-12-29 Realisations Ultrasoniques Soc Apparatus for continuous inspection of sheets and leaves
US3024644A (en) * 1957-01-16 1962-03-13 Univ Illinois Ultrasonic microscope
US3077769A (en) * 1957-01-25 1963-02-19 Smith & Sons Ltd S Flaw detection system using sonic and ultrasonic waves
US3063290A (en) * 1957-10-07 1962-11-13 John A Kaserman System for ultrasonic inspection of tubular objects
US3011339A (en) * 1957-11-07 1961-12-05 Automation Instr Inc Flaw detection apparatus
US3086390A (en) * 1958-04-28 1963-04-23 Smith & Sons Ltd S Examination by ultrasonics of bodies having a non-planar surface
DE1214436B (en) * 1958-09-02 1966-04-14 Kelvin & Hughes Ltd Arrangement for the determination of defects in workpieces by means of sound or ultrasound
DE1129321B (en) * 1959-06-09 1962-05-10 Transform Roentgen Matern Veb Ultrasound examination device working according to the reflection principle
US3496764A (en) * 1967-03-27 1970-02-24 Cornell Res Foundation Inc Sonic inspection apparatus
US3939697A (en) * 1972-08-28 1976-02-24 Akademiet For De Tekniske Videnskaber, Svejsecentralen Method and apparatus for ultrasonic examination
DE2441768A1 (en) * 1973-09-05 1975-04-17 Akad Tekn Videnskaber METHOD AND DEVICE FOR ULTRASOUND TESTING
US3962909A (en) * 1973-09-05 1976-06-15 svejsecentralen Akademiet for De Tekniske Videnskaber Method and apparatus for ultrasonic examination
DK151239B (en) * 1973-09-05 1987-11-16 Akad Tekn Videnskaber Ultrasound Examination Device

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