FR2164031A5 - Locating device - for source of strain waves eg in stressed pressure vessels - Google Patents

Locating device - for source of strain waves eg in stressed pressure vessels

Info

Publication number
FR2164031A5
FR2164031A5 FR7144397A FR7144397A FR2164031A5 FR 2164031 A5 FR2164031 A5 FR 2164031A5 FR 7144397 A FR7144397 A FR 7144397A FR 7144397 A FR7144397 A FR 7144397A FR 2164031 A5 FR2164031 A5 FR 2164031A5
Authority
FR
France
Prior art keywords
strain waves
source
locating device
pressure vessels
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
FR7144397A
Other languages
French (fr)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7144397A priority Critical patent/FR2164031A5/en
Application granted granted Critical
Publication of FR2164031A5 publication Critical patent/FR2164031A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/003—Remote inspection of vessels, e.g. pressure vessels
    • 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
    • G01N29/14—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 using acoustic emission techniques
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
    • G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Appts. permitting location of the sources of emission of strain waves constituted by zones of very limited extent, comprises at least three detectors which can be applied against the surface of the material to be studied in defined positions and each of which incorporates (a) a transducer emitting an electrical signal the amplitude of which is a function of that of the strain waves and (b) a sequence of amplification and filtration for the electrical signal furnishing a pulse each time a threshold is exceeded, as well as means for the determination of the time intervals sepg. the appearance of a first pulse in one of those sequences from the appearance of corresponding pulses in the other sequences. More esp. means are provided for calculating the position of the source of the strain waves from the above mentioned time intervals and the position of the transducers.
FR7144397A 1971-12-10 1971-12-10 Locating device - for source of strain waves eg in stressed pressure vessels Expired FR2164031A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7144397A FR2164031A5 (en) 1971-12-10 1971-12-10 Locating device - for source of strain waves eg in stressed pressure vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7144397A FR2164031A5 (en) 1971-12-10 1971-12-10 Locating device - for source of strain waves eg in stressed pressure vessels

Publications (1)

Publication Number Publication Date
FR2164031A5 true FR2164031A5 (en) 1973-07-27

Family

ID=9087259

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7144397A Expired FR2164031A5 (en) 1971-12-10 1971-12-10 Locating device - for source of strain waves eg in stressed pressure vessels

Country Status (1)

Country Link
FR (1) FR2164031A5 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427591A1 (en) * 1978-05-30 1979-12-28 Electric Power Res Inst METHOD AND APPARATUS FOR MEASURING CONCENTRATIONS OF STRAIN BY ULTRASOUND
FR2475769A1 (en) * 1980-02-12 1981-08-14 Framatome Sa ACOUSTICAL DEVICE FOR MONITORING AN INDUSTRIAL INSTALLATION
EP0049659A1 (en) * 1980-10-02 1982-04-14 Framatome Method and device for the acoustic control of an industrial installation
FR2493992A1 (en) * 1980-11-07 1982-05-14 Framatome Sa FAULT ACOUSTIC EMISSION LOCATOR IN A CLOSED STRUCTURE
FR2498320A1 (en) * 1981-01-16 1982-07-23 Cgr ACOUSTIC SOURCE DETECTION METHOD AND ACOUSTIC TRANSMISSION CONTROL APPARATUS
FR2632410A1 (en) * 1988-04-20 1989-12-08 Inst Elektroswarki Patona CONTROL INSTALLATION OF PARTS ACCORDING TO THEIR ACOUSTIC TRANSMISSION
CN114441943A (en) * 2022-01-28 2022-05-06 苏州浪潮智能科技有限公司 Strain detection method and device, computer equipment and storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545262A (en) * 1967-05-09 1970-12-08 Aerojet General Co Method and apparatus for nondestructive testing of pressure vessels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545262A (en) * 1967-05-09 1970-12-08 Aerojet General Co Method and apparatus for nondestructive testing of pressure vessels

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FRANCAISE D'ELECTRICITE, vol. 80, no. 3, mars 1971; *
T.R.G. REPORT (C), avril 1970, pages 1-8; *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427591A1 (en) * 1978-05-30 1979-12-28 Electric Power Res Inst METHOD AND APPARATUS FOR MEASURING CONCENTRATIONS OF STRAIN BY ULTRASOUND
FR2475769A1 (en) * 1980-02-12 1981-08-14 Framatome Sa ACOUSTICAL DEVICE FOR MONITORING AN INDUSTRIAL INSTALLATION
EP0049659A1 (en) * 1980-10-02 1982-04-14 Framatome Method and device for the acoustic control of an industrial installation
FR2493992A1 (en) * 1980-11-07 1982-05-14 Framatome Sa FAULT ACOUSTIC EMISSION LOCATOR IN A CLOSED STRUCTURE
EP0052550A1 (en) * 1980-11-07 1982-05-26 Framatome Apparatus for locating acoustic emission of holidays in a closed structure
FR2498320A1 (en) * 1981-01-16 1982-07-23 Cgr ACOUSTIC SOURCE DETECTION METHOD AND ACOUSTIC TRANSMISSION CONTROL APPARATUS
EP0056553A1 (en) * 1981-01-16 1982-07-28 Hbs Procedure for the detection of acoustic sources and apparatus for surveillance by acoustic emissions
FR2632410A1 (en) * 1988-04-20 1989-12-08 Inst Elektroswarki Patona CONTROL INSTALLATION OF PARTS ACCORDING TO THEIR ACOUSTIC TRANSMISSION
CN114441943A (en) * 2022-01-28 2022-05-06 苏州浪潮智能科技有限公司 Strain detection method and device, computer equipment and storage medium
CN114441943B (en) * 2022-01-28 2024-01-30 苏州浪潮智能科技有限公司 Strain detection method, strain detection device, computer equipment and storage medium

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ST Notification of lapse