RU2000118987A - METHOD FOR NON-DESTRUCTIVE CONTROL OF THERMOPHYSICAL CHARACTERISTICS OF MATERIALS - Google Patents
METHOD FOR NON-DESTRUCTIVE CONTROL OF THERMOPHYSICAL CHARACTERISTICS OF MATERIALSInfo
- Publication number
- RU2000118987A RU2000118987A RU2000118987/28A RU2000118987A RU2000118987A RU 2000118987 A RU2000118987 A RU 2000118987A RU 2000118987/28 A RU2000118987/28 A RU 2000118987/28A RU 2000118987 A RU2000118987 A RU 2000118987A RU 2000118987 A RU2000118987 A RU 2000118987A
- Authority
- RU
- Russia
- Prior art keywords
- materials
- thermophysical characteristics
- heat source
- predetermined ratio
- advance
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000009659 non-destructive testing Methods 0.000 claims 1
Claims (1)
где a коэффициент температуропроводности;
τo- момент наступления наперед заданного соотношения;
r - расстояние между источником тепла и термодатчиком;
λ коэффициент теплопроводности;
Q - количество тепла выделяемого точечным источником тепла;
k - значение наперед заданного соотношения.Method of non-destructive testing of the thermophysical characteristics of materials, which consists in using pulsed heating of the surface of a thermally insulated test material and measuring temperature values at a given control point, characterized in that the measurements are carried out only at one control point until the time when the ratio between the temperature value and its differential in time value reaches a certain, predetermined ratio, the desired thermophysical characteristics of materials at ystvii point heat source is calculated by the formulas:
where a is the thermal diffusivity;
τ o - the moment of advance of the predetermined ratio;
r is the distance between the heat source and the temperature sensor;
λ thermal conductivity coefficient;
Q is the amount of heat generated by a point heat source;
k is the value of the predetermined ratio in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2000118987A RU2184952C2 (en) | 2000-07-17 | 2000-07-17 | Process of non-destructive inspection of thermophysical characteristics of materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2000118987A RU2184952C2 (en) | 2000-07-17 | 2000-07-17 | Process of non-destructive inspection of thermophysical characteristics of materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2184952C2 RU2184952C2 (en) | 2002-07-10 |
| RU2000118987A true RU2000118987A (en) | 2002-07-10 |
Family
ID=20237978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2000118987A RU2184952C2 (en) | 2000-07-17 | 2000-07-17 | Process of non-destructive inspection of thermophysical characteristics of materials |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2184952C2 (en) |
-
2000
- 2000-07-17 RU RU2000118987A patent/RU2184952C2/en active
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