FR2271581A1 - Detector of fuel elements position - uses echo pulses in narrow angle ultrasonic field and echo from vessel wall is used as reference echo - Google Patents

Detector of fuel elements position - uses echo pulses in narrow angle ultrasonic field and echo from vessel wall is used as reference echo

Info

Publication number
FR2271581A1
FR2271581A1 FR7515232A FR7515232A FR2271581A1 FR 2271581 A1 FR2271581 A1 FR 2271581A1 FR 7515232 A FR7515232 A FR 7515232A FR 7515232 A FR7515232 A FR 7515232A FR 2271581 A1 FR2271581 A1 FR 2271581A1
Authority
FR
France
Prior art keywords
echo
head
detector
vessel wall
fuel elements
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.)
Withdrawn
Application number
FR7515232A
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.)
Gesellschaft fuer Kernforschung mbH
Original Assignee
Gesellschaft fuer Kernforschung mbH
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 Gesellschaft fuer Kernforschung mbH filed Critical Gesellschaft fuer Kernforschung mbH
Publication of FR2271581A1 publication Critical patent/FR2271581A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01S15/04—Systems determining presence of a target
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/08—Structural combination of reactor core or moderator structure with viewing means, e.g. with television camera, periscope, window
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Acoustics & Sound (AREA)
  • Remote Sensing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

The fuel element position detector is used inside a reactor vessel enclosing a nuclear reactor and consists of a sonar head which may be raised and lowered vertically and which may be rotated on its axis. The beam produced by the head is very narrow so that it may lit only one fuel element at a time. Return echo signals are received from the front surface of the fuel element, from the rear surface of the fuel element and from the inner wall of the vessel. Return times from the wall of the vessel for each angle of the head are stored, to give confirmation of the angle of the head. The height of the element is determined by raising the sonar head until the echo from the element fades out as the beam passes over it.
FR7515232A 1974-05-16 1975-05-15 Detector of fuel elements position - uses echo pulses in narrow angle ultrasonic field and echo from vessel wall is used as reference echo Withdrawn FR2271581A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2423781A DE2423781A1 (en) 1974-05-16 1974-05-16 DEVICE FOR DETECTING AND LOCATING A COMPONENT

Publications (1)

Publication Number Publication Date
FR2271581A1 true FR2271581A1 (en) 1975-12-12

Family

ID=5915723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7515232A Withdrawn FR2271581A1 (en) 1974-05-16 1975-05-15 Detector of fuel elements position - uses echo pulses in narrow angle ultrasonic field and echo from vessel wall is used as reference echo

Country Status (2)

Country Link
DE (1) DE2423781A1 (en)
FR (1) FR2271581A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600201A1 (en) * 1986-06-17 1987-12-18 Novatome METHOD FOR DIPPING AN ULTRASONIC TRANSDUCER INTO A LIQUID METAL, WITH GOOD WETTING, AND DEVICE FOR CARRYING OUT THE METHOD
FR2841337A1 (en) * 2002-06-25 2003-12-26 Commissariat Energie Atomique DEVICE FOR DETERMINING WET ANCHORING BY A LIQUID

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3718213A1 (en) * 1987-05-29 1988-12-22 Sick Optik Elektronik Erwin ULTRASONIC MONITORING DEVICE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600201A1 (en) * 1986-06-17 1987-12-18 Novatome METHOD FOR DIPPING AN ULTRASONIC TRANSDUCER INTO A LIQUID METAL, WITH GOOD WETTING, AND DEVICE FOR CARRYING OUT THE METHOD
EP0250291A1 (en) * 1986-06-17 1987-12-23 Framatome Method for immersing an ultrasonic transducer in liquid metal, providing good wetting, and device for carrying out the method
FR2841337A1 (en) * 2002-06-25 2003-12-26 Commissariat Energie Atomique DEVICE FOR DETERMINING WET ANCHORING BY A LIQUID
WO2004001368A2 (en) * 2002-06-25 2003-12-31 Commissariat A L'energie Atomique Device for determining the wetting of a wall by a liquid
WO2004001368A3 (en) * 2002-06-25 2004-04-08 Commissariat Energie Atomique Device for determining the wetting of a wall by a liquid
US7287417B2 (en) 2002-06-25 2007-10-30 Commissariat A L'energie Atomique Device for determining the wetting of a wall by a liquid

Also Published As

Publication number Publication date
DE2423781A1 (en) 1975-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse