GB715143A - Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations - Google Patents

Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations

Info

Publication number
GB715143A
GB715143A GB2927151A GB2927151A GB715143A GB 715143 A GB715143 A GB 715143A GB 2927151 A GB2927151 A GB 2927151A GB 2927151 A GB2927151 A GB 2927151A GB 715143 A GB715143 A GB 715143A
Authority
GB
United Kingdom
Prior art keywords
crystal
crystals
thyratron
coupled
pulse
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
GB2927151A
Inventor
William Halliday
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.)
Kelvin Hughes Ltd
Original Assignee
Kelvin Hughes 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 Kelvin Hughes Ltd filed Critical Kelvin Hughes Ltd
Priority to GB2927151A priority Critical patent/GB715143A/en
Publication of GB715143A publication Critical patent/GB715143A/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

715,143. Ultrasonic inspection devices. KELVIN & HUGHES, Ltd. March 13, 1953 [Dec. 13, 1951], No. 29271/51. Class 118 (2). In an ultrasonic pulse-echo flaw detector with separate transmitting and receiving piezoelectric crystals 10 and 11 coupled respectively to a shock-exciting triggered thyratron 14 and a receiver 18, the crystal 10 is cemented on top of crystal 11 with an intermediate earthed metal screen 12 so that the transmitted pulse on passing through the receiving crystal 11 generates therein only a comparatively weak " direct " pulse which may be balanced out by coupling the thyratron to a similar pair of crystals 20, 21 coupled to an artificial plastic load 22, the crystals 11 and 21 being coupled to the receiver 18 in anti-phase. Alternatively the relative positions of crystals 10 and 11 may be interchanged and crystal 20 may be excited by a separate thyratron.
GB2927151A 1951-12-13 1951-12-13 Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations Expired GB715143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2927151A GB715143A (en) 1951-12-13 1951-12-13 Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2927151A GB715143A (en) 1951-12-13 1951-12-13 Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations

Publications (1)

Publication Number Publication Date
GB715143A true GB715143A (en) 1954-09-08

Family

ID=10288880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2927151A Expired GB715143A (en) 1951-12-13 1951-12-13 Improvements in and relating to the non-destructive testing of solid bodies using mechanical vibrations

Country Status (1)

Country Link
GB (1) GB715143A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004424A (en) * 1957-10-11 1961-10-17 Sperry Prod Inc Tandem piezoelectric transducers
US3090224A (en) * 1959-04-21 1963-05-21 Rankin Alexander Bryce Calder Ultra-sonic flaw detection
US3166931A (en) * 1955-11-26 1965-01-26 Renaut Paul Ultrasonic inspection apparatus using short elastic pulses
US4446739A (en) * 1980-12-22 1984-05-08 U.S. Philips Corporation Echo ultrasound examination device with multi-layer transducer
GB2317700A (en) * 1996-09-27 1998-04-01 Graphers Systems Ltd Apparatus for measuring the quality of spot welds
US6546803B1 (en) 1999-12-23 2003-04-15 Daimlerchrysler Corporation Ultrasonic array transducer
US7132617B2 (en) 2002-02-20 2006-11-07 Daimlerchrysler Corporation Method and system for assessing quality of spot welds

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166931A (en) * 1955-11-26 1965-01-26 Renaut Paul Ultrasonic inspection apparatus using short elastic pulses
US3004424A (en) * 1957-10-11 1961-10-17 Sperry Prod Inc Tandem piezoelectric transducers
US3090224A (en) * 1959-04-21 1963-05-21 Rankin Alexander Bryce Calder Ultra-sonic flaw detection
US4446739A (en) * 1980-12-22 1984-05-08 U.S. Philips Corporation Echo ultrasound examination device with multi-layer transducer
GB2317700A (en) * 1996-09-27 1998-04-01 Graphers Systems Ltd Apparatus for measuring the quality of spot welds
GB2317700B (en) * 1996-09-27 2000-03-15 Graphers Systems Ltd Apparatus for measuring the quality of spot welds
US6072144A (en) * 1996-09-27 2000-06-06 Graphers Systems Limited Apparatus for measuring the quality of spot welds
US6546803B1 (en) 1999-12-23 2003-04-15 Daimlerchrysler Corporation Ultrasonic array transducer
US6757948B2 (en) 1999-12-23 2004-07-06 Daimlerchrysler Corporation Method for manufacturing an ultrasonic array transducer
US7132617B2 (en) 2002-02-20 2006-11-07 Daimlerchrysler Corporation Method and system for assessing quality of spot welds
US7516022B2 (en) 2002-02-20 2009-04-07 Chrysler Llc Method and system for assessing quality of spot welds

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