FR2379070A1 - Procede de discrimination dynamique entre les echos parasites et les echos de defaut dans le controle par ultrasons - Google Patents

Procede de discrimination dynamique entre les echos parasites et les echos de defaut dans le controle par ultrasons

Info

Publication number
FR2379070A1
FR2379070A1 FR7800927A FR7800927A FR2379070A1 FR 2379070 A1 FR2379070 A1 FR 2379070A1 FR 7800927 A FR7800927 A FR 7800927A FR 7800927 A FR7800927 A FR 7800927A FR 2379070 A1 FR2379070 A1 FR 2379070A1
Authority
FR
France
Prior art keywords
echoes
difference
fault
travel time
echo
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
FR7800927A
Other languages
English (en)
French (fr)
Other versions
FR2379070B1 (enrdf_load_stackoverflow
Inventor
Reinhard Pawelletz
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of FR2379070A1 publication Critical patent/FR2379070A1/fr
Application granted granted Critical
Publication of FR2379070B1 publication Critical patent/FR2379070B1/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
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • 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
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S15/523—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • 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)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FR7800927A 1977-01-28 1978-01-13 Procede de discrimination dynamique entre les echos parasites et les echos de defaut dans le controle par ultrasons Granted FR2379070A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772704128 DE2704128C3 (de) 1977-01-28 1977-01-28 Verfahren zur dynamischen Unterscheidung zwischen Störanzeigen und Fehlern bei der Ultraschallprüfung

Publications (2)

Publication Number Publication Date
FR2379070A1 true FR2379070A1 (fr) 1978-08-25
FR2379070B1 FR2379070B1 (enrdf_load_stackoverflow) 1984-02-24

Family

ID=6000087

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800927A Granted FR2379070A1 (fr) 1977-01-28 1978-01-13 Procede de discrimination dynamique entre les echos parasites et les echos de defaut dans le controle par ultrasons

Country Status (5)

Country Link
JP (1) JPS5928261B2 (enrdf_load_stackoverflow)
DE (1) DE2704128C3 (enrdf_load_stackoverflow)
FR (1) FR2379070A1 (enrdf_load_stackoverflow)
GB (1) GB1600643A (enrdf_load_stackoverflow)
IT (1) IT1086999B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381309A1 (fr) * 1977-02-19 1978-09-15 Rolls Royce Appareil pour examens ultrasoniques
FR2521297A1 (fr) * 1982-02-05 1983-08-12 Rolls Royce Analyseur de signaux pour detecteur de defauts de pieces
EP0086339A3 (de) * 1982-02-11 1985-07-03 Nukem GmbH Verfahren zum Unterscheiden zwischen Störsignalen und Werkstückfehlersignalen bei der Ultraschallprüfung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155456U (enrdf_load_stackoverflow) * 1984-09-17 1986-04-14
CN119246683B (zh) * 2024-11-28 2025-03-11 中色(天津)新材料科技有限公司 一种拉拔管内部缺陷在线检测设备及方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693100A (en) * 1971-04-09 1972-09-19 Presearch Inc Cumulative enhancement signal processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693100A (en) * 1971-04-09 1972-09-19 Presearch Inc Cumulative enhancement signal processor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/70 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381309A1 (fr) * 1977-02-19 1978-09-15 Rolls Royce Appareil pour examens ultrasoniques
FR2521297A1 (fr) * 1982-02-05 1983-08-12 Rolls Royce Analyseur de signaux pour detecteur de defauts de pieces
EP0086339A3 (de) * 1982-02-11 1985-07-03 Nukem GmbH Verfahren zum Unterscheiden zwischen Störsignalen und Werkstückfehlersignalen bei der Ultraschallprüfung

Also Published As

Publication number Publication date
GB1600643A (en) 1981-10-21
DE2704128B2 (de) 1978-11-16
JPS5928261B2 (ja) 1984-07-11
DE2704128C3 (de) 1979-07-26
FR2379070B1 (enrdf_load_stackoverflow) 1984-02-24
IT1086999B (it) 1985-05-31
JPS5395690A (en) 1978-08-22
DE2704128A1 (de) 1978-08-10

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