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Virtual Panel Event about Industrial Connectivity

Virtual event

17/05/2021(16:00-17:00)

This 60-minute virtual panel discussion between industry experts will explore the intersection of connectivity (more)

UKIVA Machine Vision Conference

Virtual

15/07/2021

Join us on 15 July 2021 on the MVC Technology Presentation Hub and explore eight online seminar theatres. (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

06/10/2021 - 07/10/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Single and Two-Axis Ultrasonic Piezo Positioning Systems

Single and Two-Axis Ultrasonic Piezo Positioning Systems

Positioning systems with ultrasonic piezo motors are very suitable for applications that require fast and precise positioning and only allow limited installation space, for example, micromanipulation or for positioning samples and lenses in microscopy as well as processes in medical technology and biomedical engineering.

PI (Physik Instrumente) has now extended the established PILine series for these tasks and offers two new positioning stages with ultrasonic piezo drives: The very compact U-523 linear stage with a length and width of only 42 mm and a height of 14 mm, and the U-723 XY stage that, despite an additional axis, is only 7 mm higher. This makes it possible to reduce the installation space, mechanical effort for mounting and alignment as well as acquisition costs for positioning in the XY direction.

The travel ranges of the axes for both variants extend to 22 mm with a drive force of 2 N. Precision positioning of loads to 5 N is possible in closed-loop operation with velocities to 200 mm/s; the minimum incremental motion is 0.1 µm. Noncontact optical linear encoders detect the position directly at the platform. Measuring is not influenced by nonlinearity, mechanical play or elastic deformation. The integrated anti-creep system of the roller cage increases the reliability and lifetime because the cage is moved as well.

The functional principle of the ultrasonic piezo motor also ensures self-locking of the drive when it is switched off. As a result, it does not consume any power, does not heat up, and keeps the position mechanically stable. Applications with a low duty cycle that are battery-powered or heat-sensitive benefit from these characteristics.

Motion controllers from the C-867 series are used to control the new PILine positioning stages.

 

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