SU136071A1 - Method for determining thermal characteristics of insulating materials - Google Patents
Method for determining thermal characteristics of insulating materialsInfo
- Publication number
- SU136071A1 SU136071A1 SU668756A SU668756A SU136071A1 SU 136071 A1 SU136071 A1 SU 136071A1 SU 668756 A SU668756 A SU 668756A SU 668756 A SU668756 A SU 668756A SU 136071 A1 SU136071 A1 SU 136071A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- insulating materials
- thermal characteristics
- materials
- determining thermal
- thermometers
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Известные методы определени теплофизических характеристик изол ционных материалов, такие, как методы регул рного режима, метод бикалориметра и др., требуют значительных (по габаритам) образцов исследуемого материала и не пригодны дл исследовани тонких пленок , например лаков, красок и эмалей.The known methods for determining the thermophysical characteristics of insulating materials, such as the methods of the regular regime, the method of biororimeter, etc., require considerable (in terms of dimensions) samples of the material under study and are not suitable for the study of thin films, such as varnishes, paints and enamels.
Предлагаемый способ отличаетс повышенной точностью, простотой И удобством определени теплофизических свойств изол ционных материалов , например тонких пленок. Это достигаетс путем сравнени результатов измерени скачков температур пленочных термометров сопротивлени с подложками из материалов исследуемого н стандартного, помещенных в одинаковые услови в ударной трубе.The proposed method is characterized by increased accuracy, simplicity, and convenience in determining the thermophysical properties of insulating materials, for example thin films. This is achieved by comparing the results of measuring temperature jumps of film resistance thermometers with substrates made from materials of the test and standard materials placed under the same conditions in a shock tube.
Предлагаемый способ основан на использовании ударной трубы в качестве источника теплового импульса с большой скоростью нарастани .The proposed method is based on the use of a shock tube as a source of heat pulse with a high slew rate.
Дл определени теплофизических характеристик материалов на стенку ударной трубы в одном сечении ее помещают два термометра сопротивлени , выполненных в виде тонкой металлической пленки, нанесенной на изол ционную подложку. Подложкой одного ИЗ термометров служит материал с известными коэффициентами теплопроводности Я и температуропроводности а. Подложкой металлической пленки второго термометра вл етс исследуемый материал.To determine the thermophysical characteristics of materials, two resistance thermometers, made in the form of a thin metal film deposited on an insulating substrate, are placed on the wall of the shock tube in one section. The substrate of one of the thermometers is a material with known thermal conductivity and thermal diffusivity a. The substrate of the metal film of the second thermometer is the material under study.
Сущность способа состоит в том, что сравнивают скачки температуры АГ, возникающие на поверхности исследуемой и эталонной пленок в ударной трубе и регистрируемые нанесенными на их поверхность пленочными термометрами сопротивлени .The essence of the method is that it compares the temperature jumps of AGs that occur on the surface of the test and reference films in a shock tube and are recorded by film resistance thermometers applied to their surface.
По формуле: А Г, А 7 , в которойAccording to the formula: A G, A 7, in which
индексы / И 2 соответственно относ тс к испытуемой и эталонной пленкам , определ ют теплофизические характеристики (теплопроводность . И температуропроводность Q) материалов.The indices / I 2, respectively, refer to the test and reference films, determine the thermal characteristics (thermal conductivity. And thermal diffusivity Q) of materials.
V «1V а.,V "1V A.,
П p e Д M e т и з о б p e т e н и P p e D M e t and z about b p e t e n and
«"
Сгюсоб определени.- тенжфизических характеристик изол ционных материалов с применением у;}арной трубки, эталонных образцов и иленочных термометровсопротивлени , отличающийс тем, что, с целью увеличени точноетиТ роетоты и удобства определени теплофизических свойств теплоизол ционных материалов, например тонких пленок , сравнивают результаты измерени скачков температур пленочных термометров сопротивлени с подложками из материалов исследуемого и стандартного, (юмещенных в одинаковые услови в ударной .Magnetic characteristics of insulating materials using a tube, reference samples and film thermometers of resistance, characterized in that, in order to increase accuracy of rototes and convenience of determining the thermophysical properties of thermal insulation materials, such as thin films, jump measurements are compared temperatures of film thermometers of resistance with substrates from materials of the studied and standard, (placed in the same conditions in the shock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU668756A SU136071A1 (en) | 1960-06-02 | 1960-06-02 | Method for determining thermal characteristics of insulating materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU668756A SU136071A1 (en) | 1960-06-02 | 1960-06-02 | Method for determining thermal characteristics of insulating materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU136071A1 true SU136071A1 (en) | 1960-11-30 |
Family
ID=48292360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU668756A SU136071A1 (en) | 1960-06-02 | 1960-06-02 | Method for determining thermal characteristics of insulating materials |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU136071A1 (en) |
-
1960
- 1960-06-02 SU SU668756A patent/SU136071A1/en active
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