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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 […]

High Stability Positioning Stage with Self-Clamping Ceramic Linear Motors Provides Long-Term Nanoscale Stability

An insidious nanoscale instability process is the quasi-asymptotic settling due to lubricant flow processes in drive, alignment and adjustment elements such as lead-screws and micrometer drives. It has been thought that this progresses at the nanoscale over many minutes, but conventional position-metrology instrumentation is typically less stable than recent process tolerances over the timescales involved, […]

Quantitative Measurement of Protein Dynamics with High Linearity Atomic Force Spectrometer

The single molecule force spectrometer described in this paper uses of fast and highly linear piezo stage. This multi-axis stage (model P-313 PicoCube) can run in open loop and provide closed-loop linearity, but at higher dynamics. The linearity, bandwidth and comparative absence of hysteretic behavior for this multi-axis assembly ensure previously unattained resolution. Combined with […]

Straightness and Flatness of Air Bearings

1. Introduction When working with air bearings, we often describe the quality of motion as one of the key factors in selecting an air bearing; specifically, the straightness and flatness of travel of linear bearings and stages. Just how straight and flat? What levels of precision are achievable? In this technical note, we will discuss […]

Electron Microscopy: Nonmagnetic Drives and Stages for Vacuum

Electron microscopy allows investigations with extremely high lateral resolution down to a range of less than one nanometer. However, this places great demands on the imaging elements. And, of course, the specimens need to be positioned with the same precision to give meaningful measured results. Drives and positioning systems therefore perform important tasks in electron […]

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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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