Title:
CT APPARATUS WITH MECHANICAL DAMPER FOR STABILISING AIR BEARINGS
Document Type and Number:
WIPO Patent Application WO2004030542
Kind Code:
A3
Abstract:
In a diagnostic imaging apparatus, a stationary gantry (24) and a rotating gantry (22) are interfaced by a plurality of air bearing elements (40). Lower air bearing elements bear the weight of the rotating gantry (22) which induce air hammering phenomena at a characteristic vibration frequency. To counteract the air hammering, a damping assembly (44) is mounted to at least one lower bearing element (40). The damping assembly (44) includes a damping mass (46) and an elastomeric connector (48) that are tuned to a frequency near the air hammer frequency to absorb the vibrational energy and damp the air hammer vibrations.
Inventors:
BRUNNETT WILLIAM C
Application Number:
PCT/IB2003/004115
Publication Date:
July 29, 2004
Filing Date:
September 22, 2003
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS CORP (US)
PHILIPS CORP (US)
International Classes:
A61B6/03; F16C32/06; (IPC1-7): A61B6/03
Domestic Patent References:
| WO2002024072A1 | 2002-03-28 | |||
| WO2001007899A1 | 2001-02-01 |
Foreign References:
| US6404845B1 | 2002-06-11 | |||
| EP1095620A1 | 2001-05-02 |
Other References:
See also references of EP 1551300A2
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