DEVICE FOR MEASURING SURFACE TEMPERATURE AND DETECTING POSITION OF HIGH-TEMPERATURE OBJECT

摘要

PURPOSE:To accurately measure the surface temperature of a high-temperature object under a non-contacting condition, by providing a photoreceiving body which can receive infrared rays from a surface to be detected in a containing chamber installed to the midway of a gas passage through which a compressed gas is blow out to the surface to be detected. CONSTITUTION:A detecting device 10 removes vapor, water drops, dust, etc., floating in its detecting visual field with a jet 19 of a compressed gas, such as air jet, etc., blowing out at a high speed also blows away foreign matters, such as water drop, scale, etc., on the surface of be detected 14. Then infrared rays radiated from the surface to be detected 14 are directly introduced to a photoreceiving body 11 in the detecting device 10 through the jet 19 of compressed gas and the temperature and its incoming position of a steel plate 1 are detected.