In order to maximize scanning speed for photonics applications, it is often important to acquire recordings of nanopositoning stage sensor data synchronized with data collected from external sensors or detectors. The LC.400 series of controllers can record up to 8 streams of internal data simultaneously, including voltage signals measured via the controller front panel BNC analog […]
The positioning error between forward scan and backward scan. A closed-loop control is an ideal solution for the problem. Capacitance sensors are normally used in nPoint’s nanopositioners to provide feedback signals. It is a non-contact displacement measurement technique, which is hysteresis free.
nPoint offers scanning ranges of up to 400µm in the X and Y axes, 600µm in the X axis, and 400µm in the Z axis. Please visit our Nanopositioning Stages page for a complete listing of scan range options.
The use of kinematic mounting virtually eliminates the effect of distortions that the piezo movement causes to the frame of the stage. It is assumed that the frame is rigid with respect to the part of the stage that moves; this is not true and can be detrimental to achieving true nanometer precision in positioning. […]
An nPoint motion control or positioning system is comprised of four elements: Piezo actuators providing motion Mechanical translation mechanism (stage) Position sensor Control electronics to maintain the desired position To realize positioning at nanometer levels of precision, these four elements need to be carefully designed and optimized. The desired attributes of a nanopositioner are extremely […]