GB699764A - Improvements in or relating to variable angle electro-acoustic transducers - Google Patents

Improvements in or relating to variable angle electro-acoustic transducers

Info

Publication number
GB699764A
GB699764A GB8278/51A GB827851A GB699764A GB 699764 A GB699764 A GB 699764A GB 8278/51 A GB8278/51 A GB 8278/51A GB 827851 A GB827851 A GB 827851A GB 699764 A GB699764 A GB 699764A
Authority
GB
United Kingdom
Prior art keywords
bracket
relating
variable angle
piezo
acoustic transducers
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
GB8278/51A
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 GB699764A publication Critical patent/GB699764A/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
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0426—Bulk waves, e.g. quartz crystal microbalance, torsional 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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

699,764. Supersonic inspection devices. SPERRY PRODUCTS, Inc. April 10, 1951 [April 13, 1950], No. 8278/51. Class 118 (ii). [Also in Group XXXIX] To enable a piezo-electric transducer to scan a solid with ultrasonic vibrations, a coupling 11 of methyl methacrylate is provided with a plane surface 12 and a concave cylindrical surface 15. The piezo-electric crystal 25 is carried by a shoe 20 which has a convex cylindrical surface fitting the surface 15 with sufficient clearance for a film of oil. The shoe, the crystal and a damping block 24 are mounted in a bracket 22 fixed to a shaft 17. The bracket can be rotated to adjust the angle of incidence of the vibrations to the plane surface 12, the angle being indicated by an index 34 on the bracket and a scale on the casing.
GB8278/51A 1950-04-13 1951-04-10 Improvements in or relating to variable angle electro-acoustic transducers Expired GB699764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699764XA 1950-04-13 1950-04-13

Publications (1)

Publication Number Publication Date
GB699764A true GB699764A (en) 1953-11-18

Family

ID=22092353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8278/51A Expired GB699764A (en) 1950-04-13 1951-04-10 Improvements in or relating to variable angle electro-acoustic transducers

Country Status (1)

Country Link
GB (1) GB699764A (en)

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