| 摘要 |
PURPOSE:To improve the predicting accuracy of the title thermometer even when a calculation expression for prediction is inappropriate or a predicted or detected temperature is unstable by correcting the predicted temperature upon completing predicting calculation based on the change of the initial temperature with time. CONSTITUTION:A temperature measuring section 10 outputs the temperature of a thermister 13 as a digital amount when the count value of a counter 16 changes in corresponding to the temperature. An arithmetic and control section 20 is composed of a CPU 21 for controlling calculation, a ROM 22 having a predicting expression storing section 22a for storing control programs and predicting expressions, parameter storing sections 22b for storing parameters, and correcting value storing section 22c for storing correcting values, and ROM 23 for flags FKP and FKM and auxiliary storages and storing measured temperatures and control operations, such as initial decision, grouping, predicting calculation, of established conditions, etc., following programs. A predicted value is supplemented when the predicted value ascends or descends in monotone and a fixed value or the amount corresponding to the secular change of a detected temperature is added to the predicted value as a correcting value. In case the predicted value or detected temperature is unstable when predicting calculation is completed, the predicted value is corrected by referring to past predicted values. |
