| 摘要 |
PURPOSE:To improve the precision of the oscillation frequency adjustment system of the internal oscillation circuit of a mobile machine by automatically adjusting the frequency value of the oscillation circuit. CONSTITUTION:A frequency counter 20 counts pulses (p) oscillated by the osci0 ation circuit 11 and outputs a frequency value (f). A correction signal output means 30 outputs a correction signal fe unless the frequency value (f) is a specific standard value. A voltage command control means 12 outputs a command signal fv on the basis of the correction value of the inputted correction signal fe and an initial value. A converting means 13 converts the command signal fv into a control voltage (v) and outputs it to the oscillation circuit 11. Therefore, the precision can be improved by automatically adjusting the frequency value of the pulses (p) oscillated by the oscillation circuit 11 of the mobile machine. |
