ES346503A1 - Improvements to Apparatus for Measuring Thermal Conductivity. - Google Patents
Improvements to Apparatus for Measuring Thermal Conductivity.Info
- Publication number
- ES346503A1 ES346503A1 ES346503A ES346503A ES346503A1 ES 346503 A1 ES346503 A1 ES 346503A1 ES 346503 A ES346503 A ES 346503A ES 346503 A ES346503 A ES 346503A ES 346503 A1 ES346503 A1 ES 346503A1
- Authority
- ES
- Spain
- Prior art keywords
- samples
- container
- walls
- envelope
- temperature
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Apparatus for measuring the thermal conductivity of a material comprises an envelope for containing a heating plate 1 sandwiched between two panel shaped samples 2, 3 of the material, the outer surfaces of the samples contacting walls 8, 9 of the envelope these walls being maintained at a constant temperature during a test, which temperature is in the region of but slightly below the temperature of the plate 1, the envelope being completed by a ring 10 inside which the plates 8, 9 can shift, the ring 10 also being maintained at a constant temperature, and a clearance being provided between the ring 10 and the lateral walls of the samples 2, 3. The temperature of the walls 8, 9 may be controlled by thermocouples connected to electric heaters in the walls, and the ring 10 may be such as to have a temperature gradient therealong ranging from the greatest value adjacent the plate 1 to the least value adjacent the walls 8, 9. In this way lateral heat losses from the samples 2, 3 are eliminated. The envelope is mounted inside a pressure tight container 13 and is embedded in granular material 16 in the form of spherical particles of alumina, zirconia quartz and a pressure may be applied to the material 16 and thus to the envelope to keep the components thereof in heat conducting relation by pressurizing bladders 17 inside the container 13. The gaseous atmosphere inside the container 13 may be monitored as to pressure, humidity, and composition, and the atmosphere in the container 13 may be circulated if desired. Measurements on the samples 2, 3 may be made at different attitudes by rotating the container 13 in bearings 21. Thermal insulation 14 is provided on the outside of the container 13 and the container is maintained at a constant temperature by a water heated tubular coil 15. By means of the above apparatus it is possible to measure the thermal conductivity of samples at different temperatures up to say 500 C., and to study the effects of changes in pressure and/or humidity on the samples.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR85701A FR1509150A (en) | 1966-11-30 | 1966-11-30 | Improvements to devices such as those for measuring thermal conductivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES346503A1 true ES346503A1 (en) | 1969-03-16 |
Family
ID=8621812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES346503A Expired ES346503A1 (en) | 1966-11-30 | 1967-10-27 | Improvements to Apparatus for Measuring Thermal Conductivity. |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE707185A (en) |
| CH (1) | CH485218A (en) |
| ES (1) | ES346503A1 (en) |
| FR (1) | FR1509150A (en) |
| GB (1) | GB1172746A (en) |
| LU (1) | LU54890A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080495A (en) * | 1989-08-30 | 1992-01-14 | Mitsui Toatsu Chemicals, Inc. | Method and apparatus for measuring thermal diffusivity by ac joule-heating |
-
1966
- 1966-11-30 FR FR85701A patent/FR1509150A/en not_active Expired
-
1967
- 1967-10-17 CH CH1445267A patent/CH485218A/en not_active IP Right Cessation
- 1967-10-27 ES ES346503A patent/ES346503A1/en not_active Expired
- 1967-11-16 LU LU54890D patent/LU54890A1/xx unknown
- 1967-11-28 BE BE707185D patent/BE707185A/xx unknown
- 1967-11-28 GB GB5409567A patent/GB1172746A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH485218A (en) | 1970-01-31 |
| GB1172746A (en) | 1969-12-03 |
| LU54890A1 (en) | 1968-02-08 |
| BE707185A (en) | 1968-04-01 |
| FR1509150A (en) | 1968-01-12 |
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