| 摘要 |
PURPOSE:To execute display coinciding with sense by following up a sudden variation of a measured quantity, by correcting and counting in accordance with the condition when operating the sum total of contents of a register to which the number of pulses is inputted in order. CONSTITUTION:A pulse counting value corresponding to a speed, etc. of every prescribed time interval by a couter 8 is stored in registers 91, 92... in order. Subsequently, contents of the descending registers 91, 92, 93 and 94 are compared in order by a comparator 10, and in case when the latest counting value + or -1 of the register 9 is the maximum, an operator 11 operates the sum total of the contents of all the registers 91... in accordance with an equationI, and outputs it to an indicator 13. On the other hand, if a register 9m which is larger than a counting value + or -1 of a register P1 exists, the operator 11 executes a correcting operation by equations II, III in accordance with increase and decrease of the contents of the register 91, and outputs its result to the indicator 13. Accordingly, for instance, even in case of a sudden change of a measured value by stop of a vehicle, etc., by following up it, the sense of a running speed of the vehicle coincides with display of a speed moter. In this regard, P1..., and PA, PB, and A, B denote contents of the registers 91..., the maximum value and the minimum value of P1-Pm-1, and correcting values such as -1, +1, etc., respectively. |
