PILine® Piezoelectric Linear Motors - Smaller, Faster, More Effective
Despite their small size, PILine® P-661 Piezoelectric linear motors generate higher driving and holding forces than conventional ultrasonic piezomotors.
They are based on a novel, patented ultrasonic piezoelectric drive developed by PI. At the heart of the system is a piezoceramic plate which is excited to produce high-frequency eigenmode oscillations. A friction tip attached to the plate moves along an inclined linear path at the eigenmode frequency. Through its contact with the friction bar, it drives the moving part of the mechanics forward or backwards. With each oscillatory cycle, the mechanics executes a step of a few nanometers; the macroscopic result is smooth motion with a virtually unlimited travel range.
High Speed and Acceleration, Self-Locking
PILine® piezoelectric motor drives can provide accelerations of up to 15 g and speeds of up to 600 mm/s, together with high resolution and high holding force. Because the ceramic stator is pressed against the slider, holding forces are generated when the motor is at rest. The result is very high position stability without the heat dissipation common in conventional linear motors.
These drives can be operated in any orientation. For best performance, both the drive housing and the friction bar must be mounted on flat surfaces. The environment must be kept clean, dry and free of dust.
PILine® motors require a drive electronics for exciting the ultrasonic oscillations. The way of how to control this drive electronics either by analog or pulsed signals strongly depends on the application. Therefore the drive electronics is not included in the delivery and can be ordered separately.
Biotechnology, Micromanipulation, Microscopy, Quality control, Semiconductor test equipment, Metrology, Mass storage testing, R&D, Photonics packaging, etc.