| 摘要 |
<p>PURPOSE: To obtain a method and apparatus for estimating the temperature of a bar-like material with high accuracy and workability. CONSTITUTION: A multiple regression coefficient (k) and a correction amountαlearnt by a temperature achievement learning unit 7 are fed, along with an inlet side temperature T0 , to an arithmetic unit 8 where a predictive temperature Te on the outlet side is calculated according to a formula; Te=kT0 +α. A defective measurement detector 10 outputs an outlet side temperature T based on detection results from an end part detector 9 when a bar-like material S passes through a spot position of a thermometer 2. When the outlet side temperature T drops abruptly, the detector 10 makes a decision that the thermometer 2 is defective and interrupts provision of the outlet side temperature T. Furthermore, a command is delivered to the arithmetic unit 8 for outputting the outlet side predictive temperature Te on the outlet side. When the outlet side temperature T is substantially recovered to a level prior to failure of the thermometer 2, the detector 10 interrupts provision of output from the arithmetic unit 8 and resumes output of the outlet side temperature T.</p> |
