METHOD OF INSPECTING MOTOR CONDITION AND DEVICE FOR INSPECTING MOTOR CHARACTERISTICS
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United States of America Patent
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N/A
Issued Date -
Feb 3, 2011
app pub date -
Jul 28, 2010
filing date -
Jul 29, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
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.
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