METHOD OF INSPECTING MOTOR CONDITION AND DEVICE FOR INSPECTING MOTOR CHARACTERISTICS

摘要

A method of inspecting motor condition, which allows inspection of a condition of a motor installed in an apparatus without removing the motor from the apparatus, is provided. A device for inspecting motor characteristics includes: a measuring section for measuring a frequency value and an amplitude value of a waveform of a counter electromotive force generated when a mover of the motor is moved by an external force; and a computing section for computing a counter electromotive force constant on the basis of the frequency value and the amplitude value. An armature winding of the motor and the inspecting device are electrically connected with a power supply line disconnected from the motor. An external force is applied to the mover of the motor. A condition of the motor is determined on the basis of the computed result.