Temperature measuring device, plated steel plate heating device, plated steel plate pressing device, temperature measuring method, plated steel plate heating method, and plated steel plate pressing method

摘要

PROBLEM TO BE SOLVED: To provide a temperature measuring device that can measure the temperature of a plating steel plate while suppressing influence due to variations in the emissivity of the plating steel plate at heating.SOLUTION: A temperature measuring device 4 includes: detection means 43 detecting the amount of radiant light emitted from a plating steel plate 1 and outputting a value according to the amount of the detected light; storage means 45 storing the correspondence between the value output from the detecting means and the actual temperature of the plating steel plate; and estimation means 44 estimating the temperature of the plating steel plate based on the output value and the correspondence.SELECTED DRAWING: Figure 2