| 摘要 |
PURPOSE:To facilitate the discrimination of counted value outputted in binary by multiplying the counted value of the counter for counting the output pulse of the rotation sensor by correcting constant. CONSTITUTION:The rotation sensor 1 outputs the pulse S1 of frequency proportional to the revolutions. The counting time generating circuit 3 divides the clock S2 of the microcomputer 4 and outputs the gate signal S3. The counter 2 counts the angle pulse S1 while the gate signal S3 is outputted. The results S4 is inputted into the microcomputer 4 via the data bas 5. The revolution data inputted into the microcomputer is multiplied by a correcting constant with the software. The revolutions per counting in the rotary measurement are arranged to meet 10<m>divided by 2<n> (where m and n are integers). This facilitates the alteration of the data and qualitative discrimination of the engine revolution characteristic. |
