PI (Physik Instrumente) Downloads

  1. Fast Optical Alignment For SiP Production

    Testing and packaging of silicon photonics elements requires nanoscale alignments that cannot be performed using visual or mechanical references. This article presents PI’s solution  for fast, parallel, nanoscale-accurate, multi-DOF global optical alignment optimization.

  2. Hexapod For Beamline Instrumentation Combines 6-Degrees Of Freedom With Extreme Accuracy And Repeatability

    Within synchrotron-based, sub-micrometer, hard X-ray tomography applications, the sample rotation axis must be aligned with high stability and within five degrees of freedom with respect to its field of view, lens, detector, or the beam itself. A hexapod-type parallel kinematic machine (PKM) is able to provide six degrees of freedom, an arbitrary pivot point option, and a compact, stiff design that is well suited for this purpose. This blog article discusses a tomography application challenge and how a hexapod positioning system is used to provide the solution.

  3. Nanopositioning Stages Help Create And Characterize Laser-Written Waveguides Inside Silicon

    Silicon photonics circuits are gaining importance in new techniques for testing and production of SiP related technologies. A crucial part in the waveguide characterization is the measurement of the refractive index with a customized Mach-Zehnder-type phase-shift interference microscope.

  4. Concept For High-Speed Interstellar Travel With Directed Energy Includes Hexapod Platform

    Researchers at the University of California are exploring the concept of a new interstellar drive system that could accelerate a small spacecraft close to the speed of light. The technique involves laser light as the driving force, and a PI H-824 hexapod 6-axis positioning platform carrying a 19 element laser phased array.

  5. Improving Accuracy Of Long Travel Linear Positioning Stages With Error Mapping

    A linear encoder can be used to significantly improve the accuracy and repeatability of stepper or servo-motor positioning stages, but even the high-end linear encoders have linearity errors. To reduce these errors, a laser interferometer measures them and uses a motion controller with the capability to store a dynamic error map.

  6. Hexapod For Drone Testing: 6 Axis Motion Simulator To Improve Image Stabilization

    Analog and digital image recording technology has always been bombarded by motion and vibration. Techniques for compensating for unwanted motion include electronic algorithms and active opto-mechanical motion compensation systems. This article presents methods for using hexapod 6-axis motion systems for reducing image blur from a drone due to vibrations.

  7. Piezo Flexure Nanopositioning Stages: Frequently Asked Questions

    PI offers many types of nanopositioning stages - positioning devices capable of nanometer or sub-nanometer resolution -  such as air bearing stages, linear motor stages, and magnetic levitation stages. This blog article covers a list of frequently asked questions regarding nanopositioning stages, and includes in-depth answers on each topic.

  8. Motion Control And Precision Positioning In Vacuum Environments

    Vacuum applications, and technologies that can only be applied in vacuum or cryogenic environments have grown in importance within scientific research and industry applications. Optics technologies use vacuum environments to manufacture components such as fiber laser optics and sensitive detectors. Other applications that use vacuum environments include small epitaxy processes, semiconductor manufacturing, and X-ray or UV applications.

  9. Precision Motion And Positioning Solutions For High Vacuum And UHV Catalog

    The design principles for vacuum-compatible positioning systems include selecting suitable materials, handling, assembling, and testing conditions, and quality control. This catalog covers the technologies and product solutions for high vacuum and UHV applications in scientific research and industrial production.

  10. Patterned Force Generation – A Precise Touch In The Time Domain

    Devices with touch-sensitive interfaces not only sense pressure, but are position-sensitive and force-sensitive. Producing devices with touch-sensitive interfaces requires highly precise test equipment with the ability to repeatedly generate fine-grained motions of exacting force and time profiles. The V-273 family of voice-coil actuators, coupled with the C-413 digital controller, offers developmental and test engineers the perfect tool for quantitatively qualifying touch-enabled devices.