Piezoelectric Ultrasonic Motor
This is a linear-type ultrasonic motor that utilizes piezoelectric devices. Ultrasonic vibrations of the piezoelectric device drive the rotor or slider through frictional contact.
Features
Offers accurate micro-movements, excellent responsiveness, and positioning as small as 20nm (Using the USMA-30 with NIKKO driver controller). Ideal for microscope stages that require precise positioning. Unlike electromagnetic motors, the movement is generated by frictional contact, and therefore the motor is not affected by magnetic fields. Optimal for applications in environments with strong magnetic fields such as MRI and other medical equipment. This small, lightweight, low-speed, high-torque motor adopts a unique drive mechanism developed by NIKKO that does not require a gearbox at low speeds. This allows for a motor with low-speed, high-torque functions in a small and lightweight body. Without the use of gears, noise is minimal, and movement is silent. The frictional contact maintains torque without power, allowing to keep the position during power off.
Material Characteristics
| ITEM | UNIT | USMA-10 | USMA-30 |
|---|---|---|---|
| DIMENSIONS | mm | 22.4×13 | 31×34.5 |
| THRUST | N | 1.5 | 5 |
| MAX HOLDINGTORQUE | N | 2.3 | 7.5 |
| MAX POWER CONSUMPTION | W | 0.8 | 4 |
| WEIGHT | g | 13 | 66 |
Design Guidelines
| ITEM | UNIT | USMA-10 | USMA-30 |
|---|---|---|---|
| DIMENSIONS | mm | 22.4×13 | 31×34.5 |
| THRUST | N | 1.5 | 5 |
| MAX HOLDINGTORQUE | N | 2.3 | 7.5 |
| MAX POWER CONSMPTION | W | 0.8 | 4 |
| WEIGHT | g | 13 | 66 |
Catalog Download
Related videos
Product Use Cases
- Microscope stage (direct drive)
- Semiconductor test equipment
- other use cases that require precise positioning
FAQ
Q1. What is the product life?
A1. Over 100km. Depends on use conditions
Q2. What is the maximum speed?
A2. USMA-30：450mm/s、USMA-10：100mm/s
Q3. What is the maximum handling load?
A3. USMA-30：2Kg、USMA-10：1Kg * horizontal
Q4. What is the positioning accuracy?
A4. Depends on the encoder used for positioning – minimum movement 20nm
Q5. What are use case examples?
A5. Electron microscope stages, stages in strong magnetic field environments, such as MRI, semiconductor test equipment, and instruments that require precision positioning. Often used in applications that require low speed, high torque.
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