| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for accurately measuring values of the principal-axis thermophysical properties of a two-dimensional anisotropic heat conductor by using pulses or a heat source which periodically changes, and to provide a measuring apparatus thereof. SOLUTION: In the method for measuring a principal-axis thermal constant of the two-dimensional anisotropic heat conductor using multi-point temperature measurement by a pulse/period method, a spot-like heat source 2 capable of changing over heating and heat absorption is brought into contact with the surface of an object 1 to be measured, the two-dimensional anisotropic heat conductor to heat and absorb heat from the surface of the object 1 to be measured by the spot-like heat source 2. Temperature-measuring elements 3 arranged at a plurality of locations on the surface of the object 1 to be measured measure phase differences and temperature differences of temperature waves in a non-stationary state that the temperature field of the object 1 to be measured changes or in a stationary state that the temperature field does not change to measure values of the principal-axis thermophysical properties such as principal-axis thermal conductivity; principal axis thermal diffusivity; and the specific heat of the object 1 to be measured. COPYRIGHT: (C)2011,JPO&INPIT |
