| 摘要 |
PURPOSE:To measure the torque characteristic of a motor without using a dynamometer, by measuring torque to the number of rotations of the motor to be measured from a transient phenomenon during a period wherein the motor to be measured reaches the number of non-load rotations after voltage was applied to said motor. CONSTITUTION:The speed signal of a motor MO to be measured is obtained by a detection means EC and digitized by ADC. From this digitized time series signal, the ratio of the change in the speed signal is calculated by an operation means OP and the correlation of the result calculated by the operation means OP and the speed signal is displayed or formed into a graph by control means C1, P1. By this method, the torque to the number of rotations of the motor to be measured can be measured from the transient phenomenon during a period wherein the motor reaches the number of non-load rotations after voltage was applied to the motor MO to be measured. |
