MERITS AND DEMERITS OF ULTRASONIC MOTOR

MERITS AND DEMERITS

Merits

• Low speed and high torque - direct drive
• Quick response, wide velocity range, hard brake and no backlash: excellent controllability; fine position resolution.
• High power/weight ratio and high efficiency.
• Quiet drive.
• Compact size and light weight.
• Simple structure and easy production process.
• Negligible effect from external magnetic or radioactive fields, and also no generation of these fields.

Demerits

• Necessity for a high frequency power supply.
• Less durability due to frictional drive.

 

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