GB683592A - Improvements in or relating to device for inspecting objects by means of vibration waves - Google Patents

Improvements in or relating to device for inspecting objects by means of vibration waves

Info

Publication number
GB683592A
GB683592A GB13626/51A GB1362651A GB683592A GB 683592 A GB683592 A GB 683592A GB 13626/51 A GB13626/51 A GB 13626/51A GB 1362651 A GB1362651 A GB 1362651A GB 683592 A GB683592 A GB 683592A
Authority
GB
United Kingdom
Prior art keywords
block
assembly
defect
doppler effect
waves
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
GB13626/51A
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 GB683592A publication Critical patent/GB683592A/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

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

683,592. Supersonic inspection devices. SPERRY PRODUCTS, Inc. June 8, 1951 [Dec. 1, 1950], No. 13626/51. Class 118 (ii). Relates to a C.W. reflection type supersonic flaw detector utilizing the Doppler effect and adapted for treating long lengths of material, e.g. railway lines. As shown a transmitting piezo electric crystal 15 is mounted on one surface 16 of a supporting block 17 which is adapted to slide over the surface 20 of the material 10, the angle 0 between the surfaces 16 and 20 and the acoustic density of the block 17 being such that the direction of propagation 21 of the waves induced in the material is inclined at a small angle to the surface 20. The receiving crystal 25 is similarly mounted on a block 27 connected to block 17 by a bar 29 so that when the assembly is slid over the surface 20 in the direction A the frequency of any received waves reflected by a defect D will differ from the transmitted waves due to the Doppler effect and means are provided, Fig. 2 (not shown), for heterodyning the transmitter input and receiver output to produce a beat frequency indicature of the defect. Alternatively the transmitting assembly may be stationary and the receiving assembly only moved.
GB13626/51A 1950-12-01 1951-06-08 Improvements in or relating to device for inspecting objects by means of vibration waves Expired GB683592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US683592XA 1950-12-01 1950-12-01

Publications (1)

Publication Number Publication Date
GB683592A true GB683592A (en) 1952-12-03

Family

ID=22082035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13626/51A Expired GB683592A (en) 1950-12-01 1951-06-08 Improvements in or relating to device for inspecting objects by means of vibration waves

Country Status (1)

Country Link
GB (1) GB683592A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937522A (en) * 1958-01-13 1960-05-24 Sperry Prod Inc Ultrasonic rail weld scanner
US3251220A (en) * 1962-06-27 1966-05-17 Chemetron Corp Apparatus for ultrasonic flaw testing
US3321959A (en) * 1963-06-17 1967-05-30 American Mach & Foundry Ultrasonic inspection system using doppler shift
US3631849A (en) * 1969-12-05 1972-01-04 Medical Dev Corp Phase-lock doppler system for monitoring blood vessel movement
GB2151786A (en) * 1983-12-19 1985-07-24 Atomic Energy Authority Uk Ultrasonic flaw detection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937522A (en) * 1958-01-13 1960-05-24 Sperry Prod Inc Ultrasonic rail weld scanner
US3251220A (en) * 1962-06-27 1966-05-17 Chemetron Corp Apparatus for ultrasonic flaw testing
US3321959A (en) * 1963-06-17 1967-05-30 American Mach & Foundry Ultrasonic inspection system using doppler shift
US3631849A (en) * 1969-12-05 1972-01-04 Medical Dev Corp Phase-lock doppler system for monitoring blood vessel movement
GB2151786A (en) * 1983-12-19 1985-07-24 Atomic Energy Authority Uk Ultrasonic flaw detection

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