Multi-parameter synchronous measurement method for high-temperature conduction and radiative properties of translucent porous material

• Main Authors: LI ZHENGYU, ZHAO SHUYUAN, QUE QUANQING, SUN XINYANG
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2018
• Subjects: COLORIMETRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The invention provides a multi-parameter synchronous measurement method for high-temperature conduction and radiative properties of a translucent porous material on the basis of transient temperaturemeasurement and aims to solve the problems that the conventional translucent porous material is low in efficiency of testing of thermal properties of high-temperature radiation and conduction, resulterrors are large, and the like. The method comprises the following steps: temperature measurement data, varied with time, of different positions of the translucent porous material is measured; lambda(two-phase)(T), beta(T), omega(T) and g(T) are constructed; a radiation intensity field and temperature field intensity at different moments in a computing domain are obtained, so that calculated temperature values Tc, varied with time, of different positions of a sample are obtained; an objective function psi is obtained; whether the objective function is smaller than set threshold epsilon is judged, if yes, conduction and