Piezo Transducers, Actuators, and Motor Drive Solutions for Medical Engineering

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 […]

Ultrasonic Piezo Transducers: From Welding to Medical Applications

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 […]

High-Quality Piezo Sound Transducers for the A380 Airbus

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 […]

Piezo Acoustics: Turning Windows into Invisible Speakers and Helping James Bond Keep Secrets

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 […]

Accelerated EDM Microstructuring Aided by Electroceramic Transducers

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 […]

Piezo Sensors (PZT) vs Fiber Bragg Grating (FBG) Sensors in Structural Health Monitoring

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 […]

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 […]

Imaging: Miniature Drives for Focus and Zoom Control for Endoscopy

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 […]

Ultra-High Precision Positioning Actuators to Align Mirror Segments in the E-ELT Telescope

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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About PI

PI (Physik Instrumente) is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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