FR2267549A1 - Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece - Google Patents

Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece

Info

Publication number
FR2267549A1
FR2267549A1 FR7412631A FR7412631A FR2267549A1 FR 2267549 A1 FR2267549 A1 FR 2267549A1 FR 7412631 A FR7412631 A FR 7412631A FR 7412631 A FR7412631 A FR 7412631A FR 2267549 A1 FR2267549 A1 FR 2267549A1
Authority
FR
France
Prior art keywords
converter
test
test piece
vibration
materials
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.)
Granted
Application number
FR7412631A
Other languages
French (fr)
Other versions
FR2267549B1 (en
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.)
TOMILOV BORIS
Original Assignee
TOMILOV BORIS
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 TOMILOV BORIS filed Critical TOMILOV BORIS
Priority to FR7412631A priority Critical patent/FR2267549A1/en
Publication of FR2267549A1 publication Critical patent/FR2267549A1/en
Application granted granted Critical
Publication of FR2267549B1 publication Critical patent/FR2267549B1/fr
Granted 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
    • G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
    • 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
    • G01N29/11—Analysing solids by measuring attenuation of acoustic 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
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • 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
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/346—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with amplitude characteristics, e.g. modulated signal
    • 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

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

A rigid acoustic coupling is made between an electro-mechanical converter and the test piece by continuous pressure. The converter and the test piece are made to vibrate in common and the material for testing is irradiated with ultrasonic test signals. In the course of the test the rate of change of the test signal amplitude is monitored. When the amplitude drops abruptly, vibration is suspended and the test signal parameters which appear as data carriers for the test case are measured. The parameters of the test signal are measured, not immediately after vibration has ceased, but after an interval long enough to allow the residual stresses on the converter, caused by vibration and pressure, to disappear.
FR7412631A 1974-04-10 1974-04-10 Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece Granted FR2267549A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7412631A FR2267549A1 (en) 1974-04-10 1974-04-10 Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7412631A FR2267549A1 (en) 1974-04-10 1974-04-10 Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece

Publications (2)

Publication Number Publication Date
FR2267549A1 true FR2267549A1 (en) 1975-11-07
FR2267549B1 FR2267549B1 (en) 1976-12-17

Family

ID=9137503

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412631A Granted FR2267549A1 (en) 1974-04-10 1974-04-10 Ultrasonic non-destructive testing of materials - has rigid coupling between converter and test piece

Country Status (1)

Country Link
FR (1) FR2267549A1 (en)

Also Published As

Publication number Publication date
FR2267549B1 (en) 1976-12-17

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Legal Events

Date Code Title Description
ST Notification of lapse