Pulse method of measuring basic thermophysical parameters
著者
書誌事項
Pulse method of measuring basic thermophysical parameters
（Comprehensive analytical chemistry, v. 12 . Thermal analysis ; pt. E）
Elsevier, 1990
- :Vol. XII,Pt. E
- :Series
- :Veda
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注記
Translated from the Slovak manuscript
Includes index
Bibliographical references: p. 334-336
内容説明・目次
内容説明
The principle of the pulse method for measuring thermophysical parameters has been known for a long time. Although its advantages compared to the stationary method or methods with constant or periodic heat sources are obvious, it is not commonly used in practice, primarily because of the considerable scattering of the experimental data. This book provides a systematic analysis of sources of scatter in experimental data, and describes experimental apparatus for measuring specific heats, thermal diffusivities and thermal conductivities in the temperature range 80-1300 K. Information is given on the measurement of thermophysical parameters of selected materials. The work also lists the most important results published so far on the use of the pulse method. This volume will be extremely useful to research workers in basic and applied research as well as workers in material quality testing laboratories.
目次
General problems in the measurement of thermophysical parameters. 2. Temperature function of an ideal experiment. Pulse method of measuring thermophysical parameters. Factors limiting the precision of measurements by the pulse method with a planar heat source. 3. Effect of heat loss from the sample surface. Ideal finite heat sources. Effect of heat loss from the sample surface. Analysis of the experiment. Calculation of thermophysical parameters. 4. Contact between two bodies. Contact thermal resistance. Dynamic properties of thermal contact. 5. Head pulse width. 6. Real heat sources. Heat capacity of the heat source. Simultaneous effect of the heat capacity of the heat source and the contact thermal resistance on the measurement. Dynamic properties of the heat source. Parallel wires as heat sources. Simultaneous effect of the heat pulse width and the heat capacity of the heat source. 7. Simultaneous effect of heat loss, the heat capacity of the heat sources and contact thermal resistance on the measurement. 8. Effect of real thermometers. 9. Effect of the sample holder. 10. Sample temperature stability. 11. Measurement of thermophysical parameters under industrial conditions. 12. Pulse method of measuring the thermophysical parameters of thin metal foils. Temperature field in thin foils. Sample holder. Heat loss from the foil surface. Temperature capacity of quartz plates. 13. Experimental arrangement of the pulse method. Experimental apparatus. Automatic measuring systems and data acquisition. Processing of the measured data. Measuring errors. 14. Applications of the pulse method. Experimental data for ruby. Experimental data for polymethylmethacrylate. Optimal experimental data for polymethylmethacrylate. Optimal experimental parameters. 15. Computer programs. Subrouting package for computation of correction factors f a and f c . References. Index.
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