GB962679A - Improvements in or relating to ultrasonic flaw detection - Google Patents

Improvements in or relating to ultrasonic flaw detection

Info

Publication number
GB962679A
GB962679A GB1171562A GB1171562A GB962679A GB 962679 A GB962679 A GB 962679A GB 1171562 A GB1171562 A GB 1171562A GB 1171562 A GB1171562 A GB 1171562A GB 962679 A GB962679 A GB 962679A
Authority
GB
United Kingdom
Prior art keywords
pulse
variations
flaws
sheet
indicating means
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
GB1171562A
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.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
Publication of GB962679A publication Critical patent/GB962679A/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
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • 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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0234—Metals, e.g. steel

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (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

962,679. Ultrasonic inspection devices. HOESCH A.G. March 27, 1962 [March 30, 1961], No. 11715/62. Heading H4D. In apparatus detecting flaws in a sheet metal strip 1, moving perpendicular to the paper, by ultrasonic pulse echo means, errors, due to the absorbtion of the pulses being changed other than by flaws, e.g. by variations in the thickness of the sheet on coupling medium 2, or by changes in the surface of the sheet, are overcome by feeding the output of the receiver 6, to two indicating means 7 and 8, the first of which 7, linearly amplifies the entire received pulse and displays it on a recorder (top trace), with flaws shown as large dips and the errors by variations in the top of the pulse, whilst the second indicating means 8, clips the echo pulse to remove the variations and displays the flaw dips with increased amplification (bottom trace). The erroneous variations of the received pulse may be used to control, by servo means, the power of the pulse emitter 5 so as to keep the scale of the recording of means 8 constant. Receiver 6 may be replaced by two separate receivers individually feeding the two indicating means.
GB1171562A 1961-03-30 1962-03-27 Improvements in or relating to ultrasonic flaw detection Expired GB962679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH42162A DE1147055B (en) 1961-03-30 1961-03-30 Arrangement for non-destructive testing of metal sheets using ultrasonic energy

Publications (1)

Publication Number Publication Date
GB962679A true GB962679A (en) 1964-07-01

Family

ID=7154770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1171562A Expired GB962679A (en) 1961-03-30 1962-03-27 Improvements in or relating to ultrasonic flaw detection

Country Status (6)

Country Link
AT (1) AT243534B (en)
BE (1) BE615672A (en)
DE (1) DE1147055B (en)
GB (1) GB962679A (en)
LU (1) LU41437A1 (en)
NL (1) NL276369A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516228A (en) * 1951-12-13

Also Published As

Publication number Publication date
NL276369A (en)
DE1147055B (en) 1963-04-11
BE615672A (en) 1962-07-16
AT243534B (en) 1965-11-10
LU41437A1 (en) 1962-05-26

Similar Documents

Publication Publication Date Title
GB1426954A (en) Immersion ultrasonic inspection system for the whole surface of flat bars
JPS5424062A (en) Ultrasonic type measuring apparatus
GB1133519A (en) Material tester
GB1503766A (en) Method and apparatus for measuring liquid pressure in pipelines
GB962679A (en) Improvements in or relating to ultrasonic flaw detection
GB1332924A (en) Arrangements and methods for the measurement of acoustiv velocity
US3090224A (en) Ultra-sonic flaw detection
DE3174632D1 (en) Apparatus for indicating variations in acoustic properties on an interface
ES336055A1 (en) Measurement and control of rolled material thickness and quality
CA949186A (en) Method and device for evaluating echo signals with echo sounding systems having digital indication
GB842653A (en) Ultrasonic inspection apparatus
GB774675A (en) Improvements in or relating to apparatus for flaw detection and velocity measurementby ultrasonic echo methods
ES395344A1 (en) Method and apparatus for amplitude sensing and data gating in a magnetic-storage device with digital interface
GB946590A (en) Improvements in or relating to recording systems for ultrasonic flow detectors
JPS5661645A (en) Thin-steel plate flaw detector using magnetism
JPS52139485A (en) Follow-up apparatus for use in high-speed ultrasonic flaw detection
GB1317162A (en) Material tester and search unit therefor
GB1260712A (en) Ultrasonic pulse-echo apparatus
GB1343933A (en) Method and apparatus for ultrasonic non-destructive testing
JPS5250784A (en) Ultrasonic type flow and density meter
GB1131075A (en) Ultrasonic inspection apparatus and method
JPS5222946A (en) Device for measuring an object in the water
JPS5253442A (en) Detector for physical states
GB1181608A (en) A method for the Ultrasonic Recording of Faults in the Walls of Very Thin-Walled Tubes.
JPS5728204A (en) Measuring method for object moving continuously