An experimental visualization of three-dimensional temperature field was performed in walk beam furnace of hot-strip factory in Wuhan Iron and Steel Corporation.

This paper described an experimental visualization of three-dimensional temperature field and detection of sheet billet surface temperatures by two flame detectors and image processing hardware in walk beam furnace of hot-strip factory in Wuhan Iron and Steel Corporation.

The black holes concerned have thermal radiation,affecting the event horizon temperature at singular points significantly.

Using entropy density near event horizon of the Vaidya-Bonner-de Sitter black hole,the instantaneous radiant emittance is calculated out,and a conclusion that the instantaneous radiant emittance of black hole at any time is always proportional to quartic power of temperature of the event horizon of black hole is obtained.

using entropy density near event horizon of the Vaidya-Bonner black hole,the instantaneous radiant exitance is calculated,and a conclusion that the instantaneous radiant exitance of black hole at any time is always proportional to quartic power of temperature of the event horizon of black hole is abtained.

Inversion of apparent temperature of extended target using two-dimensional antenna gain function;

And then it makes one-dimensional detection experiments on some area targets such as water surface, lawn, pavement and metal plate by using the DC Dicke radiometer, from which we obtain the target\'s apparent temperature at different incidence angle and make a detailed analysis of the experimental data.