(Physik Instrumente: Shrewsbury, MA) -- Physik Instrumente (PI), a global leader in precision motion control and nanopositioning, offers ring-type PZT actuators for applications requiring fast, nanometer-scale motion while maintaining an unobstructed central opening.

Higher force and longer travel than conventional piezo tubes

PICA-through PZT actuators combine the advantages of conventional linear piezo stack actuators and tube actuators. However, they provide much higher force capacity and travel ranges than traditional piezo tubes. And, unlike conventional solid piezo stacks, these special PZT actuators incorporate a through-hole that allows optical beams, fibers, probes, capillaries, wiring, vacuum lines, or fluidic channels to pass directly through the actuator. This configuration supports compact, coaxial system designs in which motion is generated around the optical or mechanical axis rather than beside it.

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