Trade.Information

Product Name: M-035 Compact Precision Tangent-Arm Rotation Stages with Optional DC-Motor and Piezo Drives

Product Description

M-035 series precision rotation stages with tangent-arm drive feature high resolution, excellent repeatability and minimum wobble. The stages are equipped with double-row ball bearings for zero backlash and high load capacity. Both the rotation platform and the scale ring (graduated in 2-degree increments) can be independently coarse positioned over 360 degrees and then locked with screws. 

Drive Options
A total of six different drive types are offered. They include various combinations of pie-zoelectric fine-positioners (closed-loop or open-loop), manual and motorized micrometer drives.

Manual Drive
The basic version, the M-035.50, is equipped with a micrometer drive and a zero-backlash magnetic coupling. The micrometer motion, when converted into rotation, provides a positioning range of 19 degrees. The resolution is approximately 23 µrad. 

DC Motor Drives
The motorized version, the M-035.D01 features a high-resolution DC motor drive unit (M-227.10, p. see link) and has a range of about 12.6° with resolution of 2 µrad. A set of limit switches on the rotation stage protects against overtravel damage.

High-Resolution Piezo Option
For applications requiring extremely high angular resolution, models M-035.PS and M-035.P0 (with manual micrometer drive) and M-035.DS1 and M-035.DP1 (motorized) are available. They have an additional piezoelectric fine adjustment, which can also be used for dynamic operation. The piezo drive has a linear travel range of 45 µm with sub-nanometer-resolution, which converts to a rotation range of approx. 1 mrad and sub-µrad resolution. 

The piezo drives in the M-035.PS andM-035.DS1 versions are also equipped with a position sensor, making closed-loop operation possible, with higher stability, reproducibility and accuracy. For more details on the piezo drives, see the “Piezo Actuators” section. 

Upgrades
M-035 stages without piezo or DC-motor drives can be upgraded at a later date.

Rotation Range Conversion

M-035 and M-036 rotation stages use a tangent-arm which extends beyond the platform. The angular equivalent of the linear actuator displacement can be calculated by the following equation:
α » arctan (x/r0)
where:
x = displacement of linear actuator [mm]
α = rotation angle [°]
r0 = distance of linear actuator contact point to center of rotation @ 0 degrees [mm]

r0 is 44 mm for the M-035 rotation stages and 66 mm for the M-036 rotation stages.

Example:
The rotation angle of an M-035 for a linear displacement x = 5 mm:

α » arctan (5/44) » 6.48°.

Company Details

Where nanopositioning technology and motion control systems of the highest accuracy level are concerned, PI has been a leading supplier worldwide for many years.

Over 30 Years Experience
When PI introduced piezoelectric... more