Improved Controller for a Three-Axis Piezoelectric Stage
- Resource Type
- Report
- Authors
- Rao, Shanti; Palmer, Dean
- Source
- NASA Tech Briefs, September 2009.
- Subject
- Engineering (General)
- Language
- English
An improved closed-loop controller has been built for a three-axis piezoelectric positioning stage. The stage can be any of a number of commercially available or custom-made units that are used for precise three-axis positioning of optics in astronomical instruments and could be used for precise positioning in diverse fields of endeavor that include adaptive optics, fabrication of semiconductors, and nanotechnology.