Balancing of rotational components of CT imaging equipment
US6412345B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One aspect of the present invention is therefore a method for balancing a hollow cylindrical, rotatable object that is coupled to a drive source that is configured to rotate the rotatable object without a central shaft. The method includes steps of: mounting an arbor having a forward shaft and an aft shaft to an inner wall of the rotatable object so that the forward shaft and aft shaft are concentric to an axis of rotation of the rotatable object; operating the drive source to rotate the rotatable object and the arbor; measuring displacement of the forward shaft and the aft shaft of the arbor while the drive source is rotating the rotatable object; applying balancing weights to the rotatable object in accordance with the measured displacements; and removing the arbor from the rotatable object when a balance is achieved.The above-described method for balancing a rotatable object is suitable for balancing CT imaging systems both at the end of a manufacturing cycle as well as in the field after component replacement. In addition, because the system is integral, it is not necessary to uncouple the rotatable object from the frame of the CT gantry to balance the rotatable object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.