FR2432734A1 - Procede et dispositif de controle du refroidissement d'une eprouvette de dilatometrie - Google Patents
Procede et dispositif de controle du refroidissement d'une eprouvette de dilatometrieInfo
- Publication number
- FR2432734A1 FR2432734A1 FR7823054A FR7823054A FR2432734A1 FR 2432734 A1 FR2432734 A1 FR 2432734A1 FR 7823054 A FR7823054 A FR 7823054A FR 7823054 A FR7823054 A FR 7823054A FR 2432734 A1 FR2432734 A1 FR 2432734A1
- Authority
- FR
- France
- Prior art keywords
- cooling
- sample
- law
- mechanical characteristics
- heating
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
Abstract
Procédé de contrôle du refroidissement d'une éprouvette de dilatométrie, selon lequel on envoie sur l'éprouvette un flux de gaz inerte, de débit constant supérieur à tout instant au débit nécessaire pour suivre la loi thermique choisie et l'on impose simultanément à l'éprouvette un chauffage rapidement modulable de manière à annuler l'écart enfin la valeur de consigne prévue par la loi et la température à coeur de l'éprouvette. Le dispositif de mise en oeuvre comprend un four à rayonnement 2 entourant l'éprouvette 1, un système de refroidissement par soufflage d'hélium 8, un régulateur 12 qui module le chauffage du four, selon les indications d'un suiveur de traces 12 et d'un thermocouple 15, par l'intermédiaire d'une unité de puissance 13. Le procédé et le dispositif selon l'invention permettent la simulation, par dilatométrie de cycles thermiques complexes et précis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823054A FR2432734A1 (fr) | 1978-08-03 | 1978-08-03 | Procede et dispositif de controle du refroidissement d'une eprouvette de dilatometrie |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823054A FR2432734A1 (fr) | 1978-08-03 | 1978-08-03 | Procede et dispositif de controle du refroidissement d'une eprouvette de dilatometrie |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2432734A1 true FR2432734A1 (fr) | 1980-02-29 |
FR2432734B3 FR2432734B3 (fr) | 1981-05-22 |
Family
ID=9211597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7823054A Granted FR2432734A1 (fr) | 1978-08-03 | 1978-08-03 | Procede et dispositif de controle du refroidissement d'une eprouvette de dilatometrie |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2432734A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346754A (en) * | 1980-04-30 | 1982-08-31 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heating and cooling system |
-
1978
- 1978-08-03 FR FR7823054A patent/FR2432734A1/fr active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346754A (en) * | 1980-04-30 | 1982-08-31 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heating and cooling system |
Also Published As
Publication number | Publication date |
---|---|
FR2432734B3 (fr) | 1981-05-22 |
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