Linear Stage Is Compact, Lightweight
May 2008Newport CorporationRequest Info
• remote operation
• 12-mm travel
• angular deviations better than 100 μrad
Newport Corp. has expanded its Agilis product range with the addition of the AG-LS25 high-precision miniature linear stage powered by the Agilis piezo step direct motor. The stage is lightweight and compact and features convenient remote operation. The piezo motor is coupled directly to the moving carriage, with no intermediate screw or gear. When idle, the motor holding force locks the position for long-term stability.
The stage provides 12-mm travel and 50-nm minimum incremental motion, with precision motion achieved by calibrated, prestressed linear ball bearings. The thermally matched stainless steel design and precision-manufactured bearing surfaces provide ripple-free, low-friction linear travel and angular deviations better than 100 μrad in any axis. The average step size under the same conditions is repeatable, so it is possible to move to an absolute position without expensive encoder feedback.
The precision electrical limit switch acts as a safety device and allows measuring the average step size by counting the number of steps from the left travel limit to the right limit and vice versa. Absolute positioning accuracy is 100 μm. Normal load capacity is 3 N, holding force is 4 N, and axial load capacity is 2 N. Pitch and yaw are 100 μrad.