 Smallest rotary stage: < 12 mm diameter
 Embedded closed-loop controller
– No separate electronics needed
– 3.3 VDC input
– Accepts direct motion commands
(I2C, SPI, UART or analog servo)
 Continuous 360° rotary motion
 Angular resolution 0.025 deg (440 µrad) closed loop with built-in absolute position sensor
 Angular resolution 0.0057 deg (100 µrad) open loop with external position sensor provided by user
 Holds position with zero power and no jitter
 Millisecond step and settle times

SKU: DK-M3-RS-U-360 카테고리: 태그: , ,

Smallest size, high resolution

The M3-RS-U-360 Rotary Stage positioning module is a miniature “all-in-one” rotary positioning stage with built-in controller. The precision smart stage with embedded controller inside is only 12 mm diameter x 12.5 mm tall. It operates on battery power and is ideal for use in miniature instruments and handheld devices.

The piezoelectric stage provides continuous 360° rotation with absolute position feedback. Patented piezoelectric motors along with position sensors, bearings, drive electronics and embedded firmware are all integrated into this rotary micro stage.


Embedded controller means tiny size plus fast, easy integration

The embedded controller in the micro stage gives you the smallest system size — no need for an external controller. It also makes for fast, easy integration into your system.

The smart stage accepts direct input of high-level digital motion commands from your system processor over UART, SPI, I2C or analog servo interface. Developer’s kits include a USB adapter for PC control, and New Scale Pathway™ software.


Low power for hand-held systems

The M3-RS-U Rotary Stage positioning module needs only 3.3 V DC and uses approximately 500 mW when moving. It can be powered by USB or standard batteries. The integrated piezo motor holds position without using power.

M3-RS-U-360 Rotary Stage Positioning Module
Rotation Range 360 deg continuous rotation
Speed > 1100 deg/sec
Acceleration > 1,000,000 deg/sec2*
Stall Torque (minimum) 0.04 N-mm
Holding Torque (minimum) 0.08 N-mm (zero power)
Recommended Maximum Payload mounted to rotating shaft (Payload must be balanced)
Mass 3 g
Inertia 350 g-mm2
CLOSED-LOOP performance (with built-in position sensor)
Recommended Step Frequency Up to 100 Hz
Resolution (encoder resolution) 0.025 deg (440 µrad) absolute
Repeatability +/-0.05 deg (880 µrad)
Accuracy 0.25 deg (4400 µrad)
Maximum Closed-LoopStep & Settle Times (0.96 g-mm2inertialload*)
0.5 deg 9 ms
5 deg 14 ms
20 deg 21 ms
OPEN-LOOP performance (external position sensor provided by user)
Resolution < 0.0057 deg (< 100 µrad)
Accuracy Typically better than 10% of distance travelled after calibration
Maximum Open-Loop Step Times (0.96 g-mm2inertialload*)
0.05 deg 0.50 ms
0.5 deg 1.6 ms
5 deg 6 ms
20 deg 10 ms
Input Voltage 3.3 V DC

Power Consumption (typical)

500 mW active, moving 190 mW active, ready 50 mW standby
Stage Mass 3 g
Operational Lifetime > 2,000,000 random positions**
Temperature/Relative Humidity 0 to +60 C, non-condensing
Compliance CE / RoHS
Communication Interface I2C,SPI,UART,analogservo

Input directly to M3-RS

Controller Integrated into stage, 64 MIPS

NO external controller needed