Mitsubishi electric corporation (20250091444). DRIVE DEVICE AND DETERIORATION DISCRIMINATION METHOD
DRIVE DEVICE AND DETERIORATION DISCRIMINATION METHOD
Organization Name
mitsubishi electric corporation
Inventor(s)
Shinsaku Maeda of Chiyoda-ku, Tokyo JP
DRIVE DEVICE AND DETERIORATION DISCRIMINATION METHOD
This abstract first appeared for US patent application 20250091444 titled 'DRIVE DEVICE AND DETERIORATION DISCRIMINATION METHOD
Original Abstract Submitted
a drive apparatus includes a power circuit and a deterioration determining device. the power circuit outputs, to a load, a current including a current component having a frequency determined by a natural frequency of at least one member of the load or a vibratory member to vibrate when receiving vibration resulting from an electromagnetic excitation force generated in the load or by a value of a natural number multiple of a rotation frequency of a rotator that is one of the at least one member. the deterioration determining device generates frequency domain data based on a sensor signal output by a vibration sensor and determines deterioration of the at least one member of the load or the vibratory member based on a value of a frequency spectrum indicated by the frequency domain data at the natural frequency or the rotation frequency used to determine the frequency of the current component.