Metrology for Precision Motion Systems at PI USA

1.  Introduction When building high precision positioning systems using our PIglide air bearing products, performing the metrology and testing is one of the most critical steps in the process. Only with proper metrology can we verify that our products and systems meet the specifications that our customers demand. In this article, we discuss the various […]

Hexapods and Parallel Kinematics Positioning Systems FAQs

Hexapod positioners are often referred to as Stewart Platforms. A hexapod is based on a 6-axis (XYZ, Pitch, Roll, Yaw) actuator system arranged in parallel between a top and bottom platform. PI parallel kinematics (PKM) precision positioning systems have many advantages over serial kinematics stages, such as lower inertia, improved dynamics, smaller package size, and […]

Advances in Precision Motorized Positioning Systems: Selection Criteria

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 […]

Performance and Applications of Inertia Based Positioning Drives: Q-Motion

Size matters in miniaturization and automation – smaller is usually better. Traditional electromagnetic motors have limitations when it comes to shrinking dimensions while maintaining high efficiency and accuracy of motion with minimized energy consumption. Piezo ceramic inertia motors can fill this gap. The Q-Motion dubbed miniature direct drives can be employed in linear positioners, rotary […]

“Micropositioning” – Classical Precision Positioning Technologies still Going Strong

Striking the right balance between affordability, accuracy, and reliability Traditional linear and rotary “micropositioning” stages are based on servo and stepper motor-driven leadcrews and ballscrews and mechanical bearings. They are classical components for precision motion control applications, spanning from lab-automation to industrial assembly and inspection. “Micropositioning” got its name from precision levels in the micrometer […]

Dental Biomechanics Research Based on Hexapod 6-Axis Platform

Hexapod motion and positioning platforms have traditionally been used in engineering, optics, and physics applications for their ability to provide precision motion in all degrees of freedom and flexibility based on a programmable center of rotation. As hexapods become more mainstream, applications expand into medical fields as well. Dental biomechanics deals with the interactions between […]

Air Bearings are Critical in CMM and Metrology Applications

Air bearings have played a crucial role in the development and construction of coordinate measuring machines (CMMs) and other metrology tools for decades. Since they are inherently frictionless and highly stable, air bearings play a key role in delivering the precision required in metrology equipment. Performance criteria, such as repeatability and minimized error motions, geometric […]

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 […]

Precision Robotics and Automation: Hexapods Advance Production Processes

Summary Hexapods, six-legged parallel-kinematic machines, are quickly gaining ground in a broad range of industrial automation applications after “learning” how to directly communicate with PLC or CNC controllers via fieldbus interfaces. As far as the semiconductor and electronics industry, automobile industry, and precision assembly are concerned, many production processes have become inconceivable without them. Today, […]

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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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