The reason they use flexures, as opposed to standard spherical bearings, is to eliminate stiction in the suspension. Twisting in the vertical plane isn't really an issue, since there's always two of them per wishbone. You can somewhat get the idea by grabbing a notepad and trying to bend it - it will bend easily up & down, but it doesn't "compress" much at all, and it doesn't like being "twisted" (in the lateral plane) very much. They use what's called a "Flexure" joint, which is basically a specially crafted pieces of composite material that is flexible (although still quite stiff) in one dimension, but all but immovable in the other two dimensions. The PI group employs more than 1,300 people worldwide in 15 subsidiaries and R&D / engineering centers on 3 continents.You're largely right. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. PI is a leading manufacturer of air bearing stages, piezoelectric solutions, precision motion control equipment, and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application. Specifications, Datasheet, More Informationįields of applications include photonics alignment, microscopy, 3D imaging, screening, surface analysis, and wafer inspection. Read: Piezo Flexure Actuators, Nanopositioners, and Piezo Mechanisms In reliability tests carried out by NASA/JPL for the Mars Mission, the actuators survived 100 billion cycles without failures. Actuators, guidance, and sensors are maintenance-free, not subject to wear, and offer extraordinary lifetime and cost-effectiveness. The XYZ piezo stage is driven by ceramic-encapsulated preloaded and flexure motion-amplified PICMA® piezo actuators that provide better performance and reliability than conventionally insulated piezo actuators. Long-Life Piezo Drives, Good Enough for NASA Watch how quickly the NanoCube performs fiber alignment in this video Encoders with 50nm and 5nm resolution are offered. Linear encoders provide direct position measurement at the motion platform and provide better accuracy and repeatability compared to conventional motor shaft-mounted rotary encoders. In addition to the entry level open-loop stepper motor variants, closed-loop models with integrated linear encoders are available. Supported functions include Wave generator, data recorder, auto zero, and trigger I/O.Ĭlosed-Loop Operation with Linear Encoder Feedback Interfaces consist of USB, SPI, RS-232, and analog. An all-inclusive software package is included: drivers for LabVIEW, dynamic libraries for Windows and Linux, MATLAB. The P-616 is operated with PI’s E-727 digital servo piezo controller, which offers the advantage of higher linearity, faster settling and scanning speed, and easy access to all motion parameters, compared to conventional analog piezo controllers. The piezo scanner can be combined with compact motorized micro-positioning stages, such as PI’s L-505 miniature stage, to achieve long travel ranges up to 1” in a very small package.ĭigital Controller for Higher Speed, Improved Linearity (Image: PI) (click on image to enlarge)Įxtended Travel to 1” – Combinations for Coarse/Fine Alignment P-616 3-Axis Compact Piezo Flexure Nano-Positioner. Also known as the NanoCube®, it is the smallest and lightest system with capacitive feedback delivering 100µm travel range in 3 degrees of freedom. ( Nanowerk News) Based on a parallel-kinematic design, with only one lightweight moving platform for all 3 axes, PI’s P-616 is available with high precision and dynamics in a compact package. How to become a science blogger and set up a science news site in 4 stepsįaster Active Alignment with NanoCube XYZ Piezo Flexure Scanning Stage.A Guide to Funding Nanotechnology Ventures.10 Key Areas Where Nanotechnology Already Impacts Our Lives.10 Things You Should Know About Nanotechnology.Nanotechnology Companies & Laboratories.Subscribe to one of our Daily Newsletters.
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