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Global leader in MOTION l POSITIONING systems
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    Hybrid Concept Using Piezo / Voice Coil and Screw Drives for the E-ELT Telescope The combination of “coarse” precision screw drives for long distance motion and ultra-high resolution actuators such as piezo and voice-coil-based systems allows combining travel ranges up to hundreds of millimeters with response, smoothness and resolutions not achievable with conventional drives. The […]

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    Flying may once have been a privilege of the gods but today, traveling by air is taken for granted. The motto is larger, faster, and further but also safety first. Whatever component used in an airplane must be “airworthy” which means reliable, durable, and as light and small as possible. This also applies to acoustic […]

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    Standard PZT and Lead-Free Piezo Ceramics Ultrasound has been used in nature for navigation above and under water. Bats and dolphins are but two species who perfected the transmission, reception, and processing over millions of years. Frequencies above 20 kHz – above the hearing range of the human ear – are labelled as ultrasound. What […]

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    An interesting new research paper on this subject was published recently by the Institute for Construction Science and the Department of Structural Mechanics, Technical University of Madrid, Spain. They compared the two methods on Carbon Fiber Reinforced Polymers (CFRP) composites for repairing and strengthening structures in service. The bottom line was that PZT sensors with […]

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  • 05/04/16--10:54: PI Technology Blog
  • PI Technology Blog: Insights on Precision Motion Control, Positioning, and Automation Solutions PI’s tech blog offers over 40 years of insight into innovative applications of precision motion control, nanopositioning, and micropositioning in industry, science, and research. We hope the PI blog is an enjoyable and informative resource, and a starting-point for innovation across disciplines. We […]

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    Minimal invasive surgery (MIS) is aiming at causing patients as little discomfort as possible and endoscopes play an important role here. Traditional Chip-on-the-Tip endoscopes use fixed focus optics, which cannot display objects at different distances with optimum resolution. By integrating a miniature drive, it could become possible to achieve variable focusing, so that the object […]

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    Motion drive and control technologies are advancing rapidly. This means engineers have access to an expanding spectrum of options to leverage previously unattainable performance and form factors. Rapidly evolving production processes have driven needs for motion control systems that provide higher accuracy, speed, resolution, and repeatability. The motion industry has responded with an expanding palette […]

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    Piezoelectric high-speed motion improves performance of die-sinking EDM in the micron realm. The basic principle of the machining process, now known as electrical discharge machining (EDM), or die sinking, was discovered in the 1940’s by accident, when Russian scientists were trying to prevent the erosion of electrical contacts caused by sparking. Today, EDM is well […]

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    Medical engineering and life-science disciplines have multi-faceted requirements for motion and positioning equipment: the spectrum spans from ultrasonic transducers to simple low-energy drive components to high-precision positioning systems and ultra-fast actuators for valve and pumping applications. Piezoceramic transducers and motor drives meet these needs and have a long track record of reliability and ruggedness in […]

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    Piezo transducers can turn vibration into electric energy (“the direct piezo effect”) and electric energy into motion (“the inverse piezoelectric effect”). They are used in everyday applications from buzzers to gas igniters and in high-tech markets from medical to semiconductor applications. Typical piezo elements are made of PZT ceramics and the piezoelectric effect responsible for […]

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    1 Introduction Electromechanical conversion in piezoceramic solid-state actuators can generate highly dynamic motion. Rise times significantly less than 100μs and repetition frequencies in the kHz range are state of the art and are used in applications such as fuel injection, ink jet printing, adhesive dispensing, active vibration damping or in adaptive tools. The control frequency […]