SU949448A1 - Material thermal physical characteristic determination method - Google Patents
Material thermal physical characteristic determination method Download PDFInfo
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- SU949448A1 SU949448A1 SU792842281A SU2842281A SU949448A1 SU 949448 A1 SU949448 A1 SU 949448A1 SU 792842281 A SU792842281 A SU 792842281A SU 2842281 A SU2842281 A SU 2842281A SU 949448 A1 SU949448 A1 SU 949448A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- determination method
- physical characteristic
- characteristic determination
- material thermal
- thermal physical
- Prior art date
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Изобретение относитс к области тепловых испытаний, а именно к измерени м теплофизических характеристик материалов, и может примен тьс при лабораторных, технологических и полевых исследовани х различных материалов .The invention relates to the field of thermal testing, namely to measurements of the thermophysical characteristics of materials, and can be applied in laboratory, technological and field studies of various materials.
Известен способ определени теплофизических характеристик путем подвода посто нного теплового потока к поверхности полубесконечного тела и регистрации изменени температуры на поверхности тела и в глубине его Cl.The known method of determining the thermophysical characteristics by supplying a constant heat flux to the surface of a semi-infinite body and recording the temperature change on the body surface and in the depth of its Cl.
Недостаток способа - необходимость нарушени целостности образца дл закладки измерител температуры.The disadvantage of this method is the need to violate the integrity of the sample for laying a temperature meter.
Известен также способ определени теплофизических характеристик материалов путем подвода посто нного теплового потока к части плоской поверхности образца и регистрации изменени температуры поверхности образца в зависимости от времени. Температура регистрируетс в точке центре симметрии круга 2 .There is also known a method for determining the thermophysical characteristics of materials by supplying a constant heat flux to a part of the flat surface of the sample and recording the change in the temperature of the surface of the sample as a function of time. The temperature is recorded at the center of symmetry point of circle 2.
Недостаток известного способа ограничение точности вследствие сложности создани надежного контакта образец-источник тепла, вли ни The disadvantage of the known method is the limiting accuracy due to the difficulty of creating a reliable contact of the sample-heat source,
качества поверхности, твердости исследуемого , материала, а также искажени измер емой температуры под вли нием пористости, макронеоднородностей образца.surface quality, hardness of the material under study, as well as distortion of the measured temperature under the influence of porosity, macro-inhomogeneity of the sample.
Цель изобретени - повышение точности .The purpose of the invention is to improve accuracy.
Указанна цель достигаетс тем, что согласно известному способу определени теплофизических характеристик , который заключаетс в подводе посто нного теплового потока к части плоской поверхности образца и в регистрации изменени температуры поверхности образца в зависимости от времени, тепловой поток подвод т к поверхности, ограниченной кольцом, а изменение температуры регистрируют интегрально по поверхности круга с диаметром не более внутреннего диаметра кольца.This goal is achieved by the fact that, according to the well-known method for determining the thermophysical characteristics, which is to supply a constant heat flux to a portion of the flat surface of the sample and to register the change in temperature of the sample surface as a function of time, the heat flux is brought to the surface bounded by a ring temperatures are recorded integrally over the surface of a circle with a diameter of not more than the inner diameter of the ring.
На фиг. 1 в качестве физической модели изображено полуограниченное тело; на фиг. 2 - устройство дл реализации способа.FIG. 1, as a physical model, a semi-limited body is depicted; in fig. 2 - a device for implementing the method.
На части поверхности полуограниченного тела, ограниченной кольцом и внутренним и внешним радиусами соответственно R и Ri, центр которогоOn the part of the surface of a semi-infinite body bounded by a ring and by the inner and outer radii, respectively, R and Ri, whose center
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792842281A SU949448A1 (en) | 1979-11-23 | 1979-11-23 | Material thermal physical characteristic determination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792842281A SU949448A1 (en) | 1979-11-23 | 1979-11-23 | Material thermal physical characteristic determination method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU949448A1 true SU949448A1 (en) | 1982-08-07 |
Family
ID=20860331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792842281A SU949448A1 (en) | 1979-11-23 | 1979-11-23 | Material thermal physical characteristic determination method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU949448A1 (en) |
-
1979
- 1979-11-23 SU SU792842281A patent/SU949448A1/en active
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