U-751.24 XY Stage with Piezomotors

Low-profile and Fast, Direct Position Measurement

Compact design: Only 32 mm in height, no lead screw ducts or flanged motors
Direct-measuring linear encoder with 100 nm resolution
Self-locking, no heat generation at rest, no servo jitter
Clear aperture 78 mm × 78 mm (at maximum displacement 65 mm × 65 mm)
Noncontact limit and reference point switches

Precision-class XY stage

PILine® stages are particularly suitable for applications that require fast precision positioning. When switched off, the self-locking drive holds the position of the stage mechanically stable. Energy consumption and heat generation are therefore considerably reduced. Applications with a low duty cycle that are battery-powered or heat-sensitive benefit from these characteristics. The position of the axis is measured by an encoder and an optical reference switch allows reliable repeatable motion. The piezomotor drive principle and its electrical operation is inexpensive and can be customized.

PILine® ultrasonic piezomotors

An integral part of a PILine® ultrasonic piezomotor is a piezo actuator that is preloaded against a movable, guided runner via a coupling element. The piezoceramic actuator is excited to ultrasonic oscillation by a high-frequency AC voltage between 100 and 200 kHz. Deformation of the actuator leads to periodic diagonal motion of the coupling element relative to the runner. The feed created is a few nanometers per cycle; the high frequencies lead to the high velocities. Preloading the piezoceramic actuator against the runner ensures self-locking of the drive when at rest and switched off.

Direct position measurement with incremental encoder

Noncontact optical encoders measure the actual position directly at the motion platform with the greatest accuracy so that nonlinearity, mechanical play or elastic deformation have no influence on position measuring.

Crossed roller bearings

With crossed roller bearings, the point contact of the balls in ball bearings is replaced by a line contact of the hardened rollers. Consequently, they are considerably stiffer and need less preload, which reduces friction and allows smoother running. Crossed roller bearings are also distinguished by high guiding accuracy and load capacity. Force-guided rolling element cages prevent linear guide creeping.

Valid patents

US patent no. 6,765,335B2

European patent no. 1267425B1

Fields of application

Research and industry. For microscopy, biotechnology, laboratory automation. Special versions for standard light microscopes available on request.

Specifications

pdf
pdf

Datasheet U-751.24

2017-08-03
2017-08-01
pdf - 407 KB
pdf - 410 KB

Drawings / Images

U-751.24 Drawing

Downloads

Datasheet

pdf
pdf

Datasheet U-751.24

2017-08-03
2017-08-01
pdf - 407 KB
pdf - 410 KB

Documentation

pdf

Technical Note U751T0001

U-751.24 XY Stage with Piezomotors
2016-09-14
English
pdf - 740 KB
pdf

Short Instructions MP121EK

M-66x, M-68x, U-521, U-62x, U-651 PILine® Stages
4.3.0 2017-06-23
pdf - 709 KB
pdf
pdf

User Manual MP67

M-686 XY Stage with PILine® Piezo Motor Drives
2014-02-14
2014-02-14
pdf - 991 KB
pdf - 1 MB

3-D Models

zip

U-751 STEP

zip - 96 KB