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FR2064761A5 - Micrometer for use in severe operating conditions - Google Patents

Micrometer for use in severe operating conditions

Info

Publication number
FR2064761A5
FR2064761A5 FR6937181A FR6937181A FR2064761A5 FR 2064761 A5 FR2064761 A5 FR 2064761A5 FR 6937181 A FR6937181 A FR 6937181A FR 6937181 A FR6937181 A FR 6937181A FR 2064761 A5 FR2064761 A5 FR 2064761A5
Authority
FR
France
Prior art keywords
sample
micrometer
stress
contact
operating conditions
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
FR6937181A
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 FR6937181A priority Critical patent/FR2064761A5/en
Application granted granted Critical
Publication of FR2064761A5 publication Critical patent/FR2064761A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/18—Micrometers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • 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)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A micrometer for use to determine the change in dimensions of a sample due to the application of stress and which is unaffected by the ambient conditions of radiation and high temperature within a nuclear reactor. Two sensors are used, one in contact with an unstressed standard sample and the second in contact with a sample under stress. Each is linked to a magnetic core surrounded by a transformer coil. The two coils are mounted on a single hollow nut which is moved longitudinally by an electrically driven screw. The sample changes due to the stress as determined by the measurement of the movement of the nut between the minimum output positions of the two transformers.
FR6937181A 1969-10-29 1969-10-29 Micrometer for use in severe operating conditions Expired FR2064761A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6937181A FR2064761A5 (en) 1969-10-29 1969-10-29 Micrometer for use in severe operating conditions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6937181A FR2064761A5 (en) 1969-10-29 1969-10-29 Micrometer for use in severe operating conditions

Publications (1)

Publication Number Publication Date
FR2064761A5 true FR2064761A5 (en) 1971-07-23

Family

ID=9042272

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6937181A Expired FR2064761A5 (en) 1969-10-29 1969-10-29 Micrometer for use in severe operating conditions

Country Status (1)

Country Link
FR (1) FR2064761A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750173A1 (en) * 1995-06-21 1996-12-27 ENEA - Ente Nazionale per le Nuove Tecnologie, l'Energia e l'Ambiente Double pendulum device for measuring angular microvariations
WO2008043813A1 (en) * 2006-10-11 2008-04-17 Commissariat A L'energie Atomique Combined means for characterising the growth and creep deformation of a material and characterisation method using such means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750173A1 (en) * 1995-06-21 1996-12-27 ENEA - Ente Nazionale per le Nuove Tecnologie, l'Energia e l'Ambiente Double pendulum device for measuring angular microvariations
WO2008043813A1 (en) * 2006-10-11 2008-04-17 Commissariat A L'energie Atomique Combined means for characterising the growth and creep deformation of a material and characterisation method using such means
FR2907221A1 (en) * 2006-10-11 2008-04-18 Commissariat Energie Atomique MEANS OF COMBINED CHARACTERIZATION OF GROWTH DEFORMATION AND CURING OF MATERIAL AND CHARACTERIZATION METHOD USING SUCH MEANS

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Legal Events

Date Code Title Description
ST Notification of lapse