GB1425249A - Ultrasonic testing apparatus - Google Patents

Ultrasonic testing apparatus

Info

Publication number
GB1425249A
GB1425249A GB2905273A GB2905273A GB1425249A GB 1425249 A GB1425249 A GB 1425249A GB 2905273 A GB2905273 A GB 2905273A GB 2905273 A GB2905273 A GB 2905273A GB 1425249 A GB1425249 A GB 1425249A
Authority
GB
United Kingdom
Prior art keywords
probe
ultrasonic
article
probes
pad
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
GB2905273A
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Priority to GB2905273A priority Critical patent/GB1425249A/en
Publication of GB1425249A publication Critical patent/GB1425249A/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
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/221—Arrangements for directing or focusing the acoustical 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
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • 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
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside

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

1425249 Ultrasonic inspection devices; ultrasonic probes BRITISH STEEL CORP 18 June 1974 [19 June 1973] 29052/73 Headings H4D and H4J An ultrasonic probe for testing a tubular article comprises a transmitting transducer supported on a pad. The pad has a sound absorbent insert in that surface nearest the test article, for absorbing any surface waves generated on the article, and the probe construction is such as to restrict the beam width so as to limit the range of wave incidence angles at the article and hence inhibit surface wave generation. In the Fig. 1 embodiment, probes 1 and 2 are equidistant from a tube weld 3 to be inspected for flaws and are initially positioned by comparing probe signals from calibration notches machined in a reference tube. Each probe comprises a piezoelectric element 11 embedded in epoxy resin having a clear zone 13, for ultrasonic wave propagation, and a chalk-loaded absorption zone 14 to restrict the beam width and direction. Residual surface waves are damped by a nylon insert 9 in contoured pad 7. Inlet and outlet passages 15, 16 for water couplant are provided. The probes transmit alternately, and each receives signals resulting from pulses transmitted by itself or by the other probe.. The signal received by the non-transmitting probe is used to monitor the coupling efficiency.
GB2905273A 1973-06-19 1973-06-19 Ultrasonic testing apparatus Expired GB1425249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2905273A GB1425249A (en) 1973-06-19 1973-06-19 Ultrasonic testing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2905273A GB1425249A (en) 1973-06-19 1973-06-19 Ultrasonic testing apparatus

Publications (1)

Publication Number Publication Date
GB1425249A true GB1425249A (en) 1976-02-18

Family

ID=10285432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2905273A Expired GB1425249A (en) 1973-06-19 1973-06-19 Ultrasonic testing apparatus

Country Status (1)

Country Link
GB (1) GB1425249A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116806A (en) * 1982-03-19 1983-09-28 Krautkraemer Gmbh Ultrasonic probe assembly
CN110753841A (en) * 2017-06-20 2020-02-04 阿克森斯公司 Holding device for acoustic emitters in a sound spectrum system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116806A (en) * 1982-03-19 1983-09-28 Krautkraemer Gmbh Ultrasonic probe assembly
CN110753841A (en) * 2017-06-20 2020-02-04 阿克森斯公司 Holding device for acoustic emitters in a sound spectrum system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee