3D Spiral Scan Plot

High Resolution Data Acquisition for Piezo Stages

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 […]

Hysteresis

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.

What are the components of a nanopositioner?

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 […]