| 摘要 |
<p>PURPOSE:To measure the transfer characteristics of a servo circuit as a closed loop by inserting an injection resistor for measuring signals in a part of the closed loop of the servo circuit and measuring the frequency characteristics of the closed loop of the servo circuit from the voltage ratio across the injection resistor. CONSTITUTION:An injection resistor R2 for measuring signals is inserted in advance in a part of the closed loop of a servo circuit. In a measurement, a measuring signal source Eg in a floating condition is connected to both ends of the resistor R2 in an adapter fashion. The frequency characteristics of the closed loop of the servo circuit are measured from the voltage ratio across the resistor R2. Thus, the transfer characteristics of the servo circuit is measured as the closed loop.</p> |
