RU2000123040A - METHOD FOR NON-DESTRUCTIVE CONTROL OF THERMOPHYSICAL CHARACTERISTICS OF MATERIALS - Google Patents

METHOD FOR NON-DESTRUCTIVE CONTROL OF THERMOPHYSICAL CHARACTERISTICS OF MATERIALS

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Publication number
RU2000123040A
RU2000123040A RU2000123040/28A RU2000123040A RU2000123040A RU 2000123040 A RU2000123040 A RU 2000123040A RU 2000123040/28 A RU2000123040/28 A RU 2000123040/28A RU 2000123040 A RU2000123040 A RU 2000123040A RU 2000123040 A RU2000123040 A RU 2000123040A
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RU
Russia
Prior art keywords
heater
circumference
temperature
materials
thermal
Prior art date
Application number
RU2000123040/28A
Other languages
Russian (ru)
Other versions
RU2192000C2 (en
Inventor
Михаил Геннадиевич Клебанов
Владимир Васильевич Обухов
Татьяна Александровна Фесенко
Original Assignee
Тамбовский военный авиационный инженерный институт
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Publication date
Application filed by Тамбовский военный авиационный инженерный институт filed Critical Тамбовский военный авиационный инженерный институт
Priority to RU2000123040A priority Critical patent/RU2192000C2/en
Priority claimed from RU2000123040A external-priority patent/RU2192000C2/en
Publication of RU2000123040A publication Critical patent/RU2000123040A/en
Application granted granted Critical
Publication of RU2192000C2 publication Critical patent/RU2192000C2/en

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Claims (1)

Способ неразрушающего контроля теплофизических характеристик материалов, включающий в себя многократное импульсное тепловое воздействие на теплоизолированную поверхность исследуемого материала и регистрацию частоты следования тепловых импульсов, подаваемых в моменты наступления заданных соотношений интегральных значений температур в двух контрольных точках поверхности исследуемого материала, отличающийся тем, что используют нагреватель в виде окружности и два термодатчика, регистрирующие температуру на окружности нагревателя и в ее центре, а коэффициенты тепло- и температуропроводности рассчитывают по формулам:
Figure 00000001

Figure 00000002

где Q - количество теплоты, выделяемое единицей длины нагревателя;
r - радиус окружности нагревателя;
ε - заданная постоянная;
N - количество подаваемых тепловых импульсов;
F - регистрируемая частота следования тепловых импульсов;
I2 - температура в центре окружности нагревателя в момент окончания тепловых испытаний.A method of non-destructive testing of the thermophysical characteristics of materials, which includes multiple pulsed thermal effects on the thermally insulated surface of the studied material and registration of the repetition rate of thermal pulses supplied at the moments of the set temperature ratios at two control points on the surface of the studied material, characterized in that the heater is used in the form of a circle and two temperature sensors that record the temperature on the circumference of the heater and in its center, and the coefficients of heat and thermal diffusivity are calculated by the formulas:
Figure 00000001

Figure 00000002

where Q is the amount of heat released by the unit length of the heater;
r is the radius of the circumference of the heater;
ε is the given constant;
N is the number of supplied thermal pulses;
F is the recorded pulse repetition rate;
I 2 is the temperature in the center of the circumference of the heater at the end of the heat test.
RU2000123040A 2000-09-04 2000-09-04 Procedure of nondestructive test of thermal-physical characteristics of materials RU2192000C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000123040A RU2192000C2 (en) 2000-09-04 2000-09-04 Procedure of nondestructive test of thermal-physical characteristics of materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000123040A RU2192000C2 (en) 2000-09-04 2000-09-04 Procedure of nondestructive test of thermal-physical characteristics of materials

Publications (2)

Publication Number Publication Date
RU2000123040A true RU2000123040A (en) 2002-08-20
RU2192000C2 RU2192000C2 (en) 2002-10-27

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RU (1) RU2192000C2 (en)

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