Using Spherical Air Bearings in Satellite Testing

As new satellite programs become more popular, such as NASA’s CubeSat program, the need for satellite test systems is becoming more urgent. NASA has launched more than 30 CubeSats over the last several years, and as of 2015, it has a backlog of more than 50 awaiting launch. The various commercial and academic institutions building […]

Performance of a Large Motorized Rotary Air Bearing Stage for Synchrotron Crystallography

PI recently built a large 300mm diameter rotary air bearing stage for use in a synchrotron beamline test facility. The beamline, when finished, will be used for Macromolecular Crystallography. This stage was designed with the goal of achieving best-possible performance for the following specifications: Stiffness Load capacity Radial runout error motion Velocity smoothness The application […]

Reliability of Ultrasonic Motors

1.  Overview PILine® positioning systems are based on a direct drive using ultrasonic piezo motors. Therefore, very low response times as well as accurate positioning can be accomplished. Due to the particular operating principle, PILine® ultrasonic motors are self-locking even when switched off, a great advantage when it comes to position stability. Ultrasonic motors are […]

Positioning Capabilities of Ultrasonic Motors

  1.  Overview While conventional positioning systems convert the rotary motion of a motor into linear motion using a spindle, PILine® positioning systems are based on a special direct drive. This completely eliminates backlash and play and enhances the response time and positioning accuracy. Furthermore, they offer high-resolution positioning and fast step-and-settle performance. At the […]

Back to PI Homepage

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 […]

Ultra-Stable Mirror Mounts for LINC-NIRVANA High Resolution Imager are based on Self-clamping PiezoWalk Motors

An extremely stable motorized mount for initial alignment of two dichroic beam splitters in the instrument was required. The mirrors reflect visible light and transmit the NIR are located close to the pupil plane are very sensitive to tilt and flexure errors which could be introduced to the wave-front sensor. The technical specifications to be […]

PI Hexapod chosen for LISA Pathfinder Space Mission

On December 3, 2015, the European Space Agency (ESA) launched the LISA Pathfinder spacecraft, marking the birth of the next phase of an incredible project that will one day help scientists look at the structure of galaxies and our early universe. We might even get a preview into the structure and nature of space-time itself. […]

Fast Piezo Scanning Stages for Pixel Sub-Stepping, Image Resolution Enhancement, Super-Resolution Imaging and Vibration and Shake Suppression

Increasing the Resolution of Optical Sensor Chips: Applications of Pixel Sub-Stepping Optical Resolution in Imaging Low light conditions create difficult conditions for imaging applications from astronomy to microscopy. Low light intensity means neither the resolution of the chip nor the exposure time for changing or moving objects can be freely chosen. Typical applications are fluorescence […]

Scanning Performance of Air Bearings

1.  Introduction A common application in which an air bearing is specified is scanning. Scanning involves moving either a work-piece or an optic at a constant velocity, while a reading or writing operation takes place. Such operations include printing and image-setting (i.e., writing) and imaging (i.e., reading). While the physical act of writing an image […]

Advances in Piezo Mechanics Aid Eye Surgery

Piezo motion-based mechanisms provide a variety of features that are highly sought after in life-science and medical engineering applications, such sterile ceramic designs and lubricant-free drives. Ceramics are also non-magnetic, an advantage in high-energy imaging/scanning based on strong magnetic fields. Piezo mechanisms can also provide very precise motion with incredible speed. Successful correction of vision […]

Follow the PI Blog!

Enter your email to subscribe and receive notifications of new posts by email.

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.

USA / Canada
www.pi-usa.us | info@pi-usa.us

EAST
(508) 832-3456
MIDWEST
(508) 832-3456
WEST
(949) 679-9191 (LA Area & Mexico)
(408) 533-0973 (Silicon Valley/Bay Area)