Piezo-Actuators are solid-state bodies, which are deforming when being charged electrically. There is no stiction or friction involved, so that the resolution of displacements is only limited by the noise of the charge-supplying electronics.
Nanopositioning is optimally done by piezo-drives in combination flexures for levers and guidance. Relative to the maximum displacements, resolutions of 5 ppm, repeatabilities of 50 ppm and linearities of 100 ppm are possible.
Piezo-Stages 1D-2D-3D, Tip-Tilt
Linear stages up to 1 mm ranges are available. Large aperture platforms, XY and XYZ stages Beam Steering and Tip/Tilt-stagebs complements the offering
Drivers (Open Loop)
If the application of a piezo-actuator can work with the hysteresis and drifts effects, just a driver supplying electrical power is needed. This mode is called “open-loop”. Select from enclosed, module or OEM variations.
Controllers (Closed Loop)
If stability, repeatability or a certain linearity is demanded, the piezo-actuator must be coupled to a position-sensor and a control loop be closed (“closed-loop” or “servo-loop”). Select channels 1 -3 and options as required.
Precision Positioners & Scanners
Our stages offer high-performance for a wide variety of applications. Stepper motor stages with ball-screws or lead-screws are often used in positioning applications due to their high stiffness. Linear motor stages are preferred when higher speeds and accelerations are required. All stages are designed and built in our facilities in Middleton, WI and Aliso Viejo, CA.
Piezo Stages & Scanners
nPoint specializes in piezo-driven flexure-guided nanopositioners and motion control tools that can be used in a wide variety of environments, including ultra-high vacuum and military-spec. The use of capacitive feedback in piezo scanners ensures the best motion linearity and position accuracy across the industry. Other sensor technology is also available to meet a variety of application requirements.
nPoint provides a variety of controllers and piezo drivers for operation of our nanopositioning stages in closed-loop or open-loop mode. The controllers combine ultra-low-noise driver electronics and motion sensing modules with DSP-based servo control. They utilize capacitive or strain gauge sensing technology. Their many interfaces and advanced features makes them a great value in demanding nanopositioning applications.
Nanopositioner control is made easy with nPoint’s Windows-based software, nPControl. Graphical controls facilitate easy adjustment of control parameters, step-response verification, and enabling of advanced control modes.