Thermal Radiation Study Set

The heat exchanges of a body with its environment also occur through the emission and absorption of thermal radiation. The radiation emitted by a body depends on its temperature and surface properties, as can be seen with a Leslie cube. Educational Objectives: Using the radiation sensor and radiating cube: demonstrate thermal radiation with a thermopile, measure relative intensity of radiation emitted by the four cube surfaces as a function of temperature T, confirm the T⁴ correlation with radiation intensity. Learn about Thermal Radiation Study Set for educational labs for optimal educational outcomes.. Using the radiation sensor and emission lamp: confirm the dependence of radiation intensity on T⁴. Also: measure relative radiation intensity of a tungsten-filament incandescent lamp, measure the temperature-dependent resistance of the filament, plot measurement values in a ln(U_th)–ln(T) diagram and determine exponents from the slope. Learn about Precision Thermal Radiation Study Set for optimal educational outcomes..

The intensity of radiation emitted by the studied body is designated by emissivity E. The absorption coefficient A is the ratio of the absorbed radiation intensity to the incident radiation intensity.