FR2064761A5 - Micrometer for use in severe operating conditions - Google Patents
Micrometer for use in severe operating conditionsInfo
- 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
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.
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)
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 |
-
1969
- 1969-10-29 FR FR6937181A patent/FR2064761A5/en not_active Expired
Cited By (3)
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 |