System and method for controlling deflection of a dynamic surface
US6299571A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system for controlling deflection of a dynamic surface includes at least one sensor in communication with the dynamic surface for detecting the presence of a deflecting force on the dynamic surface and generating a feedback signal proportional to the deflecting force. The system includes a controller in communication with the at least one sensor for receiving the feedback signal and generating an output signal in response to the feedback signal. At least one piezoelectric actuator is in communication with the dynamic surface and in communication with the controller for receiving the output signal and applying a counter deflecting force on the dynamic surface for removing the deflection from the dynamic surface. In other preferred embodiments, the piezoelectric actuators maintain the dynamic surface in a preferred shape, such as a curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.