摘要 |
PURPOSE:To compensate temperature under an optimum state by fetching the detection output of a temperature sensor every fixed time, calculating the temperature data of compensating temperature and compensating the temperature characteristics of respective units based on the calculated temperature data. CONSTITUTION:The temperature sensor 6 always detects ambient temperature. Besides, an interval timer 9 executes counting every fixed time and outputs it. An arithmetic means 10 inputs the temperature data detected by the sensor 6 every time the timer 9 outputs and measures the temperature at that time. Based on the measured result and the former measured result, discrimination whether the measured temperature at that time is a rising tendency or a falling tendency and the changing rate thereof are calculated by a prescribed operation expression. A controller 2 executes the suited compensation of the temperature characteristic for every various kinds of units 4, 5 and 12 - 14 based on the operated result by the arithmetic means 10. Thus, the actions of the respective units are precisely controlled and they are applied in a wide range by the change of the operation expression. |