GB1410211A - Method of and apparatus for ultrasonic testing - Google Patents

Method of and apparatus for ultrasonic testing

Info

Publication number
GB1410211A
GB1410211A GB2294572A GB2294572A GB1410211A GB 1410211 A GB1410211 A GB 1410211A GB 2294572 A GB2294572 A GB 2294572A GB 2294572 A GB2294572 A GB 2294572A GB 1410211 A GB1410211 A GB 1410211A
Authority
GB
United Kingdom
Prior art keywords
transducers
reflector
emitter
signals
ultrasonic
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
GB2294572A
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB2294572A priority Critical patent/GB1410211A/en
Publication of GB1410211A publication Critical patent/GB1410211A/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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2487—Directing probes, e.g. angle probes
    • 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

Landscapes

  • Physics & Mathematics (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)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

1410211 Ultrasonic testing of materials DEFENCE SECRETARY OF STATE FOR 16 May 1973 [16 May 1972] 22945/72 Heading H4D A method of ultrasonically testing an object includes utilizing a plurality of emitter transducers or a single extended emitter transducer and a reflector disposable so that the emitted ultrasonic energy is directed by the reflector on to a comparatively small area of the test object. In the embodiment shown a power source 1 drives separate transducers 4, 5 via adjustable delays 2a, 3a, the delays enabling the separate ultrasonic beam from the transducers to be adjusted to be in phase and provide an intense combined beam 8a directed by reflector 8 on to test object 9. The ultrasonic beam passing through the object is picked up by receiver 10 and passed via pre-amplifier 11 and narrow band amplifier 12 to analogue storage unit 13. A device 14 is provided for moving the object so that it may be scanned and signals representing the object movement are also fed from device 14 to the storage unit. A cathode-ray tube unit 16 is provided to display the signals. The pulses from source 1 are of a duration long compared to one cycle of the natural frequency of the transducers so that they may reach their natural frequency when pulsed by signals at this frequency. Figs. 2, 3, 4 (not shown) illustrate further embodiments utilizing a plurality of emitter transducers and a conical, pyramidal or parabolic reflector, the transducers being placed behind a screen (24), (24<1>) or (24<11>), for heat shielding them from hot test objects. The transducers may be liquid or gas coupled to the object and the emitting surface of each transducer is preferably concave. Specification 1,410,212 is referred to.
GB2294572A 1972-05-16 1972-05-16 Method of and apparatus for ultrasonic testing Expired GB1410211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2294572A GB1410211A (en) 1972-05-16 1972-05-16 Method of and apparatus for ultrasonic testing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2294572A GB1410211A (en) 1972-05-16 1972-05-16 Method of and apparatus for ultrasonic testing

Publications (1)

Publication Number Publication Date
GB1410211A true GB1410211A (en) 1975-10-15

Family

ID=10187603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2294572A Expired GB1410211A (en) 1972-05-16 1972-05-16 Method of and apparatus for ultrasonic testing

Country Status (1)

Country Link
GB (1) GB1410211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005012193B3 (en) * 2005-03-15 2006-08-17 Landis+Gyr Gmbh Ultrasound head e.g. for testing materials for cracks, has sound signals summated as useful signal for coupling into or received from medium
WO2010014312A1 (en) * 2008-07-30 2010-02-04 The Boeing Company Hybrid inspection system and method employing both air-coupled and liquid-coupled transducers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005012193B3 (en) * 2005-03-15 2006-08-17 Landis+Gyr Gmbh Ultrasound head e.g. for testing materials for cracks, has sound signals summated as useful signal for coupling into or received from medium
WO2010014312A1 (en) * 2008-07-30 2010-02-04 The Boeing Company Hybrid inspection system and method employing both air-coupled and liquid-coupled transducers
US9310339B2 (en) 2008-07-30 2016-04-12 The Boeing Company Hybrid inspection system and method employing both air-coupled and liquid-coupled transducers

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee