Resonant shaking
US7270472B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2005 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Mar 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S366/601
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A resonant shaker includes a support tray for supporting a target carrier. A sensor generates an electrical signal that is related to an acceleration of the support tray. A linear drive motor includes an armature that is coupled to the support tray. The linear drive motor provides an oscillating drive force to the support tray in response to a drive current applied to the linear drive motor. The resonant shaker also includes a controller. The controller receives the electrical signal from the sensor and a drive signal that is related to the drive current. The controller transmits a modified drive current to the linear drive motor in response to a predetermined phase relationship between the electrical signal and the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.