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PI (Physik Instrumente) LP
Company Description
PI: ISO 9001 certified, global leader in nanopositioning, Hexapods, ultra-precision motion control & piezo stage positioning systems for OEM and research.
Products: Piezo Stages; Nanopositioning Systems; 6-Axis Hexapod Alignment Systems, Piezo Stages for Microscopy; Lens Positioners; Fast Steering Mirrors / Active Optics; Long- Life Multilayer Piezo Actuators; Ceramic Linear Motors, Piezo Drivers & Digital Controllers; Micropositioning Actuators, Stages & Motion Controllers; MicroMotion Robots for Automated 3D to 6D Photonics Alignment; 30+Years Experience.
New:
XYZ Piezo Microscopy Stage, Ultra-Precision Piezomotor; 8mm Micromotor; Fast Steering Mirror
Contact Information
 16 Albert St
Auburn,MA
United States
Press Releases
| High Resolution / High Bandwidth Piezo Beam Steering Mirror Platforms Provide Larger Angles
PI (Physik Instrumente) L.P. — a leading manufacturer of nanopositioning and piezo-based precision motion-control equipment for photonics, astronomy / aerospace and semiconductor applications—provides a number of fast steering mirror tip/tilt platforms driven by solid-state piezo ceramics.
PI USA is ITAR compliant and designs and manufactures custom products at it's Auburn, MA US HQ.
More information is available at tip-tilt-stage.com
Features & Advantages:
* Six Closed Loop & Open Loop Models for Mirrors up to 50 mm Diameter
* Optical Beam Deflection to 120 mrad (>3°)
* Resonant Frequency in the kHz Range for Sub-Millisecond Step Response
* Resolution to 20 nrad — Excellent Position Stability
* Parallel-Kinematics Design for Higher Dynamics, Stability & Linearity
* Closed-Loop Versions for Better Linearity
* Differential Drives for Excellent Temperature Stability
Typical Applications
Beam steering, vibration cancellation, active optics, optical communications, , beam correction, image stabilization, interlacing, dithering, laser scanning, high resolution microscopy / spectroscopy
2-Axis, Flexure Guided Systmes, No Polarization Rotation
PI's steering mirror platforms provide precise angular tip/tilt motion of the top platform around two orthogonal axes. These flexure-guided, piezoelectrically driven systems can provide higher accelerations than other actuators, enabling step response times in the sub-millisecond range.
The single pivot-point design also prevents the drawback of polarization rotation, which is common with conventional 2-axis stacked systems, e.g. galvo scanners.
3-Axis models with additional piston movement (phase correction) are also available
Parallel-Kinematics: Smaller with Improved Stability, Linearity & Dynamics
PI piezo steering mirrors are based on a parallel-kinematics design with coplanar rotational axes and a single moving platform driven by two pairs of differential actuators. The advantage is jitter-free, multi-axis motion with excellent temperature stability. Compared to stacked (two-stage), mirror scanners, the parallel-kinematics design provides symmetrical dynamic performance in both axes with faster response and better linearity in a smaller package. |
| Hexapods and Piezo Tip/Tilt Mirrors for Astronomy
PI has more than 20 years of experience with the design and manufacture of Hexapod alignment systems and high-speed piezo tip/tilt correction mirrors for aerospace and astronomy applications.
PI's special weatherproof hexapods work in remote locations such as in Chile's Atacama Desert, 16,500 feet above sea level where PI provides a multitude of six-axis hexapod alignment systems and motion controllers to align the secondary reflectors in 25 twelve-meter telescopes.
ALMA is an international joint effort to build the world's most sensitive radio telescope, in Chile's Atacama Desert, 16,500 feet above sea level. Eventually, an array of up to 64 antennas will work together as one giant virtual telescope and provide a spatial resolution 10 times higher than the Hubble Space Telescope. The telescope will allow scientists to observe galaxies in their formative stages with unmatched clarity.
Customers choose PI as a supplier for tip/tilt mirrors and secondary alignment systems, because of its long track record with designing and manufacturing astronomical hexapods, actuators and active optics. In the last two decades, PI piezo-driven tip/tilt systems, actuators or hexapods have been employed in a number of astronomical telescopes, for example in: Hawaii, Chile, South Africa and the Canary Islands.
More information at
http://www.pi-usa.us/products/Micropositioning_Stage_Hexapod/hexapod-6-axis-stage.php#ALMA |
| Piezo Motor Technology Enables Rotation Stage with Ultra-Low Profile and High Speed to 720 Deg/Seconds
Auburn, MA, PI (Physik Instrumente) L.P. – a leading manufacturer of precision motion control systems — has released a higher-precision version of its M-660 low profile rotary table.
8X Higher Resolution, Same Low Profile
Driven by piezo motors which enable the very low profile of only 14 mm (0.6in), the new model is equipped with a high accuracy direct measuring encoder and provides 8 times the position resolution of the existing version.
Self-Clamping Ceramic Motor, Direct Drive, Direct Encoder, High Speed
The M-660 rotary table can accelerate to velocities of 720 degrees/sec. and its directly coupled precision optical encoder resolves positions down to 4 µrad (0.00023°), providing phase-lag-free, backlash-free feedback to the servo controller. Its self-clamping ceramic drive provides very high stability, with no energy consumption at rest and no heat generation.
Applications: Semiconductor/ Test Equipment, Metrology, Optical Instrumentation
Features & Advantages
* Very Low Profile for Easy Integration: Only 14 mm (0.6”)
* Backlash-Free Direct Drive and Direct Metrology Optical Encoder
* 4 µrad Resolution (0.00023°)
* Max. Velocity 720 °/s, Unlimited Travel Range
* Self-Locking Ceramic Direct Drive: Energy Saving & High Position Stability
* PILine® Motor Principle is Non-Magnetic & Vacuum-Compatible
Datasheets & More Information on the M-660 Rotary Table:
http://www.physikinstrumente.com/en/news/fullnews.php?newsid=175
Low Inertia Ceramic Drive Improves Start/Stop Behavior and Speed Control
Mass and inertia were reduced significantly compared to conventional rotation stages, due to the light-weight direct-drive ceramic motor, operating without gears or magnets. The net result is very fast start/stop behavior, precise bidirectional speed and position control, which is critical for high speed motion contouring. These features make the M-660 outperform the stability, acceleration and settling speed of traditional servo motor direct drives and gear-driven mechanisms.
Software Support, Optimized Motion Controller
A special motion controller for piezo motors is available to take full advantage of the specific motion characteristics of ultrasonic ceramic motors. USB interfacing and a solid software and driver package (LabView, Matlab, etc) for seamless integration are included. |
| Piezo Nano-Positioning Stage Provides 30 mm Travel, 0.5 Nanometer Resolution and Holds Position w/o Power
PI’s new N-664, single-axis linear nanopositioner delivers sub-nanometer resolution and better than 1 nm in-position stability due to its self-clamping, ceramic linear-motor.
Instead of the usual stepper or servo-motor, this new linear positioning stage features a patented PiezoWalk® linear drive, which provides a number of advantages such as lower heat generation and higher positional stiffness.
The direct-drive linear stage is equipped with a proprietary, highly accurate linear scale that delivers 0.5 nanometer resolution.
Software Support, Optimized Motion Controller
The closed-loop positioning stage is operated by a proprietary controller that eliminates hysteresis and backlash for nanometer-scale motion with high accuracy and repeatability. The controller takes full advantage of the specific motion characteristics of the PiezoWalk® drive enabling an additional high dynamics analog range of 5 µm. USB interfacing and a solid software and driver package (LabView, Matlab, etc) for seamless integration are included.
Despite the very low profile of only 0.8” (20 mm) and compact dimensions, the stage offers a standard travel range of 30 mm (1.2”) and can be scaled up for longer travels, if needed.
Applications
PI’s PiezoWalk® positioners are of great value for semiconductor alignment and positioning applications as well as for the manufacture of fiber-optic gratings and for ultra-high resolution microscopy applications. The PiezoWalk® principle was awarded with SEMI’s Technology Innovation Showcase (TIS) prize for innovative design in 2005 and has since enabled a number of manufacturers in related industries to develop break-through equipment and tools.
More Info:
http://www.nanopositioning.net/nanopositioning-linear-stage.php?onl-str#N-664
Features & Advantages
* Self Clamping Linear Motor for Higher Stability
* Low Profile of only 20 mm
* Long Travel range 30 mm
* 0.5 nm Linear Encoder
* Max. velocity 10 mm/second
Keywords: Nano-Positioning, Piezo, Precision Alignment |
| Minature Hexapod Platform: 6-Axis Optics Alignment System is Vacuum Compatible
Auburn, MA, PI (Physik Instrumente) L.P. – a leading manufacturer of precision parallel kinematics motion control systems — has released a new miniature hexapod. Two versions - for standard conditions and for vacuum applications -are available.
Small, yet Versatile and High Force
The new M-811 miniature Hexapod measures only 130 mm in diameter and 115 mm in height. Despite its small size, it can handle loads to 5 kg (11 lbs) and position them in all six degrees of freedom with sub-micrometer precision.
Features & Advantages
* Small but High Load Capacity: 11 lb (5 kg)
* High Precision: Actuator Resolution 0.04µm, Repeatability : ±0.5µm
* Versatile Motion: 6 Degrees of Freedom + Randomized Center of Rotation
* Velocity to 10 mm/sec
* XYZ-Travel: 35/35/13mm; Rotations: XYZ: 20°/20°/40°
* Digital Controller and Software Included
More Information on Hexapods:
http://www.hexapods.net/standard_hexapods.php
Software, Programming and Controller
Like all PI parallel kinematic Hexapod positioners, the miniature vacuum Hexapod comes bundled with software and a highly specialized digital controller with high-speed Ethernet connectivity. Programming and commanding the Hexapod is simple and straight-forward, as all positions are conveniently given in Cartesian coordinates (XYZ, Theta X, Theta Y, Theta Z).
Parallel Kinematics vs Conventional Serial Kinematics
Parallel-kinematics positioning systems have several advantages over conventional stacked multi-axis positioners. All six actuators directly affect one common platform, significantly reducing mass and inertia. Moreover, there is no accumulation of the lateral and angular runout errors of the individual axes. Unlike rotation stages and goniometers which come with a fixed center of rotation, the PI Hexapod concept lets the user set and change the pivot any time via software.
Hexapod Applications, Range
Today, hexapod applications are found in all technology fields: medical engineering, X-ray microscopy, photonics alignment, semiconductor test & metrology, astronomy, precision machining, aeronautics, high-energy physics, etc. PI is the leading manufacturer of precision micropositioning and nanopositioning hexapods. The company introduced its first hexapod 2 decades ago for a precision alignment system in an astronomical telescope and provides a large variety of different models with load capacity from 2 kg to more than 2,000 kg. |
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