| 摘要 |
PURPOSE:To measure the controllability of a control system as the object simply and accurately, by selecting the control system to be measured, by measuring the responses of the control system by changing the measuring frequency of a function appliance and by using critical frequency as a stable limit. CONSTITUTION:A control system to be measured among a constant speed control system AVR and a field magnet control system EMF of a direct current motor 1 is selected by means of a change-over appliance 26. Measuring frequency by means of a function generator 25 is altered and supplied to the control system selected, the output is added to adders 11-13, the responses of the control system are measured and critical frequency in the case when the system cannot follow to measuring frequency in the case when the system cannot follow to measuring frequency is measured as a stable limit. Thus, there is no neccessity for calculating value to be measured for a long time, and the controlability of the control system as the object can be obtained simply and precisely. |
