Ball-Screw Stage with Linear Encoder

Aerotech has introduced a Ball-Screw Stage with Linear Encoder, a compact, high-performance linear positioning stage featuring smooth travel combined with high accuracy, repeatability and positioning resolution capability to 25nm.

Applications include optics positioning, z-axis positioning of sensors in surface metrology, and in general purpose high-precision alignment. Quick multi-axis configurations are made easily with other MPS linear and rotary stages using the adapter brackets and mounting compatibility inherent in the entire MPS stage family.

The low thermal expansion (3.3ppm/˚C) precision glass scale encoder results in high-accuracy and repeatable positioning over long periods of time. The linear encoder is available with amplified sine (1 Vpp) or 50nm TTL digital outputs for easy integration with all standard controllers.

The MPS75SLE motor options include a DC servomotor with a high-resolution rotary encoder or a stepper motor. Just like the MPS75SL, the SLE is available with and without optional bellows waycovers. An optional mounting plate provides direct mounting to both English and metric optical breadboards, while the inherent mounting compatibility between all MPS stages results in simple development of multi-axis arrangements.

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