| 摘要 |
PURPOSE:To automatically detect the burning condition and to determine the suitable burning condition by correcting the influence of stains by computing the relative value of the light intensity of a light emitting element that emits light at the time of stopping burning and the light intensity of the radiation light of burning. CONSTITUTION:A light emitting element 9 is illuminated by a signal from a light emitting element controller 11, and the output of the light emitting element 3 at that time is memorized in a memory 9. Upon completion of memorizing, the light emitting element 9 is turned off by a signal from the light emitting element controller 11, and the burning is started with a fan 7 and a pump 6 are actuated and controlled so as to obtain the predetermined rates of air supply and burning. The output voltage of a light receiving element 3 during the burning is detected, and its ratio to the memorized information in the memory 12 is computed by a computer 13, and, based on the computation result, a burning sensor 14 determines the burning condition. As the burning condition is automatically monitored, the safety is ensured, and an accurate determination of burning condition can be made without adversely being affected by variances in stains on the light receiving element and its mounting position because they are corrected. |
